RIO DE JANEIRO -- Day 13 of the Rio Games features medal action in track and field, beach volleyball, platform diving, wrestling and more. Here are some things to watch (all times local):TRACK AND FIELDUsain Bolt should be lining up for gold medal No. 8 at 10:30 p.m. in the 200 meters and the biggest drama may not be whether he wins, but whether he cracks the once-thought-untouchable 19-second barrier. He already owns both the world record at 19.19, and Olympic record at 19.30.Among those who will challenge him include Canadian Andre De Grasse, who was on Bolts shoulder for much of the semifinal Wednesday night, and LaShawn Merritt of the U.S. De Grasse won bronze to Bolts gold in the 100.American Justin Gatlin -- who won silver in the 100 and was booed at that event -- failed to qualify in semis.Mens decathalon medals will be awarded after the 1500m finals, which start at 9:56 p.m. The athletes day starts with 110m hurdles (9:30 a.m.), discus (10:25 a.m.), pole vault (1:25 p.m.), javelin (6:45 p.m.) American Ashton Eaton is leading in points after the first day of events. Damian Warner of Canada, beat Eaton in a 100-meter heat and set an Olympic decathlon best 10.30 seconds in the process.In the womens 400 hurdles at 10:15 p.m., the Americans try to capture their first Olympic gold in the event. Dalilah Muhammad is the favorite, but Ashley Spencer is running well.The 30-year-old Kerron Clement tries to add a gold medal in the 400 hurdles, which start at noon. He won a silver in the event at the 2008 Beijing Games (and had a cameo in a Beyonce video ). Jamaicas Annsert Whyte has the second best time of the year.At 9:31 p.m., South Africas Caster Semenya runs in the 800 semis at 9:31 p.m. Semenya has been under unwanted scrutiny ever since word leaked in 2009, just before she won the 800-meter world title as a 19-year-old, that track officials mandated that she undergo sex testing.The shot put finals, starting at 10:30 p.m., are Joe Kovacs to lose. The American has four of the top five best throws in the world this season.The womens javelin finals are at 9:10 p.m.BASKETBALLThe U.S. will most likely be without star guard Sue Bird when they face France in the semifinal at 7 p.m.Bird suffered a sprained knee capsule and is listed as day-to-day. Even without the four-time Olympian, the Americans still have the most potent offense in the tournament, averaging over 104 points a game. They have won 47 consecutive games in the Olympics and stand two victories away from a sixth straight gold medal.The game is a rematch of the 2012 London Games gold medal match, which the Americans won by 36 points. France had its own injury at point guard when star Celine Dumerc hurt her ankle right before the Olympics began.Earlier, at 3 p.m., Spain plays Serbia.The gold medal game is Saturday afternoon.BEACH VOLLEYBALLThe mens finals at 11:50 p.m. pit two-time Olympians Paolo Nicolai and Daniele Lupo of Italy against Brazils Alison and Bruno , who is the nephew of the nations basketball icon Oscar Schmidt.The Italians beat Russias Viacheslav Krasilnikov and Konstantin Semenov 15-21, 21-16, 15-13 on Tuesday night.Alison and Bruno, the No. 1 seed in the tournament, are the defending world champions and the hometown favorites.GOLFThe second round of womens play starts at 7:30 a.m.Ariya Jutanugarn of Thailand takes a one-shot lead into the second round of play when golf resumes at 7:30 a.m. Her 6-under 65 has her one shot ahead of South Koreans Inbee Park and Seiyoung Kim.Jutanugarn is a four-time winner coming off her first major at the Womens British Open.VOLLEYBALLThe top-ranked American women look to move one step closer to a first gold when they take on Serbia in the semifinals at 1 p.m. The landscape of the tournament changed after two-time defending Olympic champion Brazil made an early exit at Chinas hands.Serbia lost in four sets to the U.S. during pool play but pulled off a surprising five-set victory at last years World Cup in Japan that forced the Americans to qualify for Rio in January.China will face the upstart Netherlands women, who are leaving their mark in Rio playing in their first Olympics in 20 years. They play at 10:15 p.m.WRESTLINGThree-time world champion Adeline Gray is a heavy favorite in the 75-kilogram weight class, while Helen Maroulis is a serious medal contender at 53 kilograms.Grays top challenger will likely be Aline Da Silva Ferreira, a silver medalist from the world championship in 2014 wholl no doubt be backed by a boisterous home crowd.Maroulis, who won a world title at 55 kilograms in 2015, will find herself up against the toughest opponent of her career if she and Japans Saori Yoshida reach the finals.Yoshida is a 16-time world champion -- including three Olympic titles -- and she hasnt lost in a major tournament in years. But Yoshidas margins of victory have shrunk in recent tournaments, and Maroulis hasnt lost a match in two years.The qualification matches start at 10 a.m.BOXINGU.S. bantamweight Shakur Stevenson is scheduled to face Russias Vladimir Nikitin at 2:30 p.m. for a spot in the gold-medal bout, although Nikitin might be unable to fight after taking serious damage in his hotly disputed win over Irelands Michael Conlan two days earlier.Three Cuban boxers appear in the final four fights, culminating in Julio Cesar La Cruzs gold-medal light heavyweight bout with Kazakhstans Adilbek Niyazymbetov at 3:30 p.m.DIVINGChinas dominance at the diving pool shows no signs of waning as the 10-meter platform finals approach at 4 p.m.Si Yajie and Ren Qian went 1-2 in the preliminaries Wednesday, setting themselves up to challenge for Chinas sixth diving gold medal of the Rio Olympics.Si scored no lower than 76.50 in any of the five rounds and posted the top score of 397.45 points. Ren was a bit off on her third dive but still claimed the second spot at 385.80.No one else was even close. Jessica Parratto of the United States took third at 346.80.The top 18 move on to Thursdays semifinals at 10 a.m.FIELD HOCKEYThe gold medal mens match features two surprises with Belgium taking on Argentina at 5 p.m.The Argentines humiliated Germany, the defending two-time champion, by a record 5-2 to get through the semis. And the Belgians beat the Netherlands 3-1 to break an 80-year streak of never losing to the neighbor in major competition.BMX CYCLINGMaris Strombergs of Latvia begins his quest for a third straight gold in BMX racing when the mens quarterfinals begin.Nicknamed The Machine, Strombergs is the only man to win BMX gold since the cycling event was added to the Olympics as a medal sport in 2008 in Beijing. Strombergs is seeded seventh in Rio.Reigning world champ Joris Daudet of France is the top seed after finishing first in the seeding runs Wednesday.---AP Summer Games website: http://summergames.ap.orgSwell Flaske Salg .Y. -- The Buffalo Sabres have recalled forward Kevin Porter and defenceman Chad Ruhwedel from the minors as part of a five-player roster shuffle made by the NHLs worst team. Swell Traveler Norge . SIMONS ISLAND, Ga. http://www.swellflaskenorge.com/swell-flaske-marmor.html . After Martin Skrtel put the Reds in front from close range at Stamford Bridge after only four minutes, Hazard hit back in the 17th with a superb strike. Etoo gave Jose Mourinhos team a decisive lead from Oscars back pass in the 34th. Swell Bottle Butikk . Brett Kulak and Jackson Houck of the Vancouver Giants were each charged with assault causing bodily harm on Aug. 18, according to the B.C. court services. Swell Flaske Marble . Note: The Calgary Flames announced Tuesday that Sean Monahan would not be made available to Canadas World Junior team. PHILADELPHIA -- Eddie Alvarez waited to feel the magnitude of the moment as he stood eye-to-eye with Conor McGregor on a Madison Square Garden stage. Alvarez, hyping the biggest fight of his career, wondered if nervousness would kick in as he stared down McGregor. Maybe anger. An adrenaline rush, something, that would sound the emotional bell inside his body that he shared space with one of UFCs top fighters.He had listened to McGregor yap and boast with all the theatrics reserved for a daytime talk show, and when the time hit in September for the UFC 205 headliners to finally face off, Alvarez felt nothing.My heart rate didnt go up not two beats, Alvarez said. I was standing in front of that man and I didnt feel anything. I dont know what was going on. Maybe I was just off that day. But this guy made me feel nothing.Trash talk? Perhaps, but the 32-year-old Alvarez insisted he had a detached demeanor because he viewed McGregor as just another victim on his roll call of champions that he will beat down for a win.I dont get caught up in names, Alvarez said. I just fight.His most pressure-packed fight yet -- the one that could help launch Alvarez into McGregor-type paydays -- is ahead.Alvarez makes his first UFC lightweight title defense against McGregor on Saturday night at MSG in the promotions return to New York for the first time since the state lifted the mixed martial arts ban earlier this year. McGregor, the Irish fighter with the brash public persona that made him one of UFCs top draws, is also the featherweight champion and has vowed to walk out of the cage with both championship belts draped over his shoulders.Alvarez has found the lightweight belt quite comfortable propped on one of his shoulders this summer in his native Philadelphia.He seemed primed to fill a role as Phillys one-man fifth franchise once boxer Bernard Hopkins retires in December. Alvarez has been a championship man about town, as he threw out the first pitch at a Phillies game or mingled with fans at a beer event appropriately named BrawlerFest. Hopkins even tipped his cap toward Alvarez, offering congratulations on a banner raised outside the gym where he trained.Alvarez may make history in New York. But he made his name in Philly fighting on streets, outside bars, even playgrounds, for any reason years before he became a settled family man and forged his wway into the MMA cage.ddddddddddddI never said Im going to start fighting and Im going to be the best in the world at it, Alvarez said. My original mindframe when I started was, no one could beat me in a fight. I was 19 or 18 years old. You couldnt convince I could lose a fight. You just couldnt. Id laugh at you.Alvarez, 5-foot-9, 155 pounds, was a high school wrestler who had his eyes opened to MMA when he attended a UFC card in Atlantic City, New Jersey. He became hooked when he was introduced to a group of men training in a basement near his Kensington home.It wasnt even known, The sport wasnt really anything, Alvarez said. No one knew nothing about MMA. I went, this is cool.But not cool enough to stick with the sport while he was still in high school. When he graduated, Alvarez was directionless and still spent his weekends out with the wrong crowds and getting mixed up in fights -- that kind that could have landed him in jail, not prepping for title shots.Sooner or later I was like, I need to go see those guys that went down in the basement, Alvarez said. I need to see if theyre still training and they were. Except they had a gym now.Alvarez made his pro debut after just eight months of MMA training. He went undefeated in his first 10 MMA fights and won Bellators lightweight title in 2009. He became entangled in a protracted legal conflict with Bellator and eventually signed with UFC in 2014. Alvarez was trounced by Donald Cowboy Cerrone in his first bout, but recovered with split-decision wins over Gilbert Melendez and Anthony Pettis to earn a lightweight title shot.Alvarez won the 155-pound title with a dramatic first-round stoppage of Rafael Dos Anjos in July on a UFC Fight Night card.Up next, McGregor, who is coming off a decision victory against Nate Diaz in a welterweight bout in August at UFC 202.A lot of people are going to show up to watch me beat this guy up, Alvarez said.McGregor said this week he would retire Alvarez in the fight.Its over for you. You will not fight again after this, McGregor crowed. You will not look the same. You will not think the same, and thats it.Alvarez laughed off the threat -- and made one of his own.Were about to take out arguably the biggest name in MMA, he said. ' ' '