Jaroslav Kulhavy trained so hard for the Olympics that he didnt have time to finish work on a new house.It took a broken left hand to finally slow him down on the mountain bike, though its not the kind of break he needed as he works to get back atop the medal stand in Rio. There is little time to rest with some of cyclings best-known names looking to unseat the Czech champion.In March, Kulhavy had surgery on the hand he broke during a race in Cyprus. After a five-week recovery, he was back on the World Cup circuit in May.The main thing is that I didn*t fall anywhere, because the terrain was very slippery, Kulhavy said on his website after finishing fifth at La Bresse. I have the points and my performance looks good. I was riding in a good feeling especially at the end.Some notes and other things to watch in mountain bike during the Rio Games:FAMILIAR FOESThere are two familiar names atop the world rankings: Nino Schurter of Switzerland and Julien Absalon of France. Schurter won silver in 2012 and bronze in 2008. Absalon, a two-time Olympic gold medalist, had his hopes dashed for another first-place finish in London by a flat tire.SAGAN WHAT?World road race champion Peter Sagan will try to win gold at Rio on a mountain bike. The Slovak Cycling Association said Sagan agreed to give up his road spot for the mountain biking berth. Sagan tested the difficult road course in Rio in January and decided it was too hilly for him to contend. Hes a former junior world champion in mountain biking.TOP WOMENAnnika Langvad of Denmark was the top-ranked female rider internationally going into the world championships in late June, with three World Cup series wins over the last year. Langvad was followed closely by Switzerlands Jolanda Neff, the World Cup winner in 2014 and 2015. Julie Bresset from France, who won gold in 2012, is an alternate this year.LEA IN THE LEADThe top U.S. contender is Lea Davison , ranked 20th in the world. She finished 11th in London and since the last Olympics, Davison had surgery to repair torn cartilage in her right hip in January 2014, about four years after needing a similar procedure on her left hip.She felt good this spring, though ran into some bad luck after gashing her elbow during a World Cup race in May, stunting momentum for a top finish. Davison finished the race still bleeding, in 18th place. Davison, though, has five top-10 finishes in World Cup races in the last year.The womens mountain bike World Cup circuit is ridiculously competitive and deep right now, Davison said.The other womens spot on Team USA went to Chloe Woodruff, ranked 28th in the world. She won nationals in 2015.This is a dream come true, Woodruff said on Facebook after learning on June 23 that she made her first Olympics.FORWARD LOOKINGThe lone mens spot on the U.S. team is going to 23-year-old Howard Grotts. He was chosen over Stephen Ettinger, who is four years older but higher ranked in the world. With the United States a longshot to medal, Rio will serve as a learning experience for Grotts.ON THE COURSEThe 3-plus mile-long, man-made Rio course has received good reviews from riders. Marc Gullickson, director of the USA Cycling Mountain Bike program, said the course was well-manicured, with challenging, though not extremely dangerous, features. The course, riders have said, makes for a television-friendly event. Heat could be an issue, though, with no trees to provide shade. Aqib Talib Rams Jersey . Ibaka equaled a career high with 20 rebounds, adding four blocked shots and 15 points as the Thunder smothered the Milwaukee Bucks offence in a 92-79 victory Saturday night. John Franklin-Myers Jersey . The team also announced Tuesday that the Braves will wear a commemorative patch on the right sleeve during the season. 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LONDON -- Novak Djokovic survived an early setback, and then made it look all too easy.The second-ranked Serb, who has a chance to reclaim the No. 1 ranking at the O2 Arena next weekend, rallied to beat Dominic Thiem 6-7 (10), 6-0, 6-2 Sunday in his opening match at the season-ending ATP finals.Djokovic won nine of 10 games to take control of the match after losing the first set in a tiebreaker. And even that was close.Yeah, a thrilling tiebreaker, Djokovic said. I had, I think, only one set point. He just played a good point. I was in the rally, but he just was going for his shots.Thiem had his first three set points at 6-3 in the tiebreaker, but he double-faulted twice and then put a backhand into the net to make it 6-6.Djokovic had a chance, too, leading 9-8. But he couldnt close it out with Thiem serving, eventually hitting a backhand long. The Austrian finally won it on his seventh set point with a forehand winner, prompting Djokovic to smack a ball into the crowd.After that, it was just about all Djokovic. The Serb reeled off six straight games to send it to a third set, and then broke Thiem twice more to close it out.Even though I lost the first set, I thought I didnt do too many things wrong, said Djokovic, who saved the only break point he faced. It was just the very high quality of his game that prevailed in the first set.In the following sets, it got to be too much for the Austrian, who was making his debut at the tournament for the top eight players in the world.I lost a little bit energy, not much, but just a little bit (after the first set), Thiem said. Of course, against a player like Novak, he immediately steps up. Thats how the second set went.Thiem said he had a chance to meet Manchester United manager Jose Moourinho after the match, and the pair chatted briefly.dddddddddddd Thiem is a fan of English club Chelsea, a team Mourinho has coached in the past.In the late match, fourth-seeded Milos Raonic of Canada beat sixth-seeded Gael Monfils of France 6-3, 6-4.Monfils, who was playing at the ATP finals for the first time, hit a pair of tweeners in the match, but it was Raonic that got the breaks -- one in each half.Djokovic lost the No. 1 ranking to Andy Murray last week, but he can earn it right back in London. If either of the two wins the title next Sunday, that one will be assured of the top ranking -- as long as Djokovic wins another round-robin match on the way to the final.If Djokovic does reclaim the No. 1 ranking, he would finish the season at the top for the third season in a row and the fifth time in six years. Murray is trying to end up as the top man for the first time.With a victory on Sunday, Djokovic can also join Roger Federer as the only players to win the season-ending tournament six times. Federer is not playing in London, sitting out the rest of the season as he continues to recover from knee surgery.Djokovic has had his own injury problems this season, including pulling out of the China Open with an elbow injury in September. In Sundays match, he called for a trainer during the first changeover, but it was because he hurt his thumb on the court after reaching for an early shot.It was just a nasty cut that I had when I didnt manage to return the serve, the first serve, Djokovic said. Just kind of caught the surface, then I cut myself. It was bleeding. I just wanted to stop the bleeding. 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