never faced a break point and limited the big mans threatening

LONDON -- Roger Federer fought back Saturday to reach the semifinals in the ATP World Tour Finals. On the back of a poor season, the 17-time Grand Slam winner overcame a 3-0 deficit in the third set to beat Juan Martin del Potro 4-6, 7-6 (2), 7-5 to reach the semifinals for the 11th time. The Swiss earned a chance to prove that -- despite his aging legs, aching back and recent lack of consistency -- he can still beat rival Rafael Nadal, his semifinal opponent. "I just have to have the right mindset to give it one last go, maybe play with a little less pressure than I have in previous matches with him," Federer said. "I just feel like I need to look at it more as being an underdog a little bit because of circumstances, because of my year, because of his year. Maybe that free swinging is what I kind of need to do a little bit more tomorrow." The 32-year-old Federer has endured a tough year and the elite event is his last chance to win a big title in 2013. Federer has just four victories against top-10 opponents in 2013 and has not beaten Nadal since 2012. The top-ranked Spaniard leads 21-10 in their head-to-head series, but Federer is 4-0 on indoor hard courts, having secured all four wins at the ATP Finals. Nadal, who returned to tennis in February following a seven-month layoff due to a knee injury, clinched the year-end No. 1 spot this week in a season in which he won the French Open and the U.S. Open. In London, the Spaniard qualified from his group unbeaten. "We know each other that well. Hes going to do exactly what he needs to do, Im going to try to do what I need to do," Federer said. "Hopefully its going to match up good for me. If not, he deserves it. Hes had a wonderful season." Novak Djokovic, who beat Richard Gasquet 7-6 (6), 4-6, 6-3 in his final round-robin match to extend his winning streak to 20 matches since his loss to Nadal in the U.S. Open final in September, will face Stanislas Wawrinka in the other semifinal. Federer won only the grass-court event at Halle, Germany, in June. He regularly lost to unseeded opponents and secured his qualification for the Finals at the last minute. "The goal is always to win every tournament. But I think I had to be slightly more realistic in recent weeks and months," Federer said. "I knew that sometimes just getting a few rounds into the bag was positive." Both Federer and del Potro needed a win to progress from Group B and treated the crowd to a tense and entertaining back-and-forth match. Federer trailed in all three sets. Only once in 12 appearances has Federer failed to advance to the last four at the season-ending tournament for the top eight players. He struggled to return del Potros big serve in the first set and committed seven forehand mistakes as his rival opened up a 5-1 lead. Capitalizing on more Federer errors, del Potro broke again in the third game of the second set. The Argentine looked set for an easy win but failed to build on the momentum, double-faulting as Federer levelled at 3-3. Federer then gradually took the upper hand with a brilliant display at the net and played a nearly prefect tiebreaker as del Potro crumbled. Federer clinched the set with an ace. But Federer again started sluggishly in the decider, allowing del Potro to break as he hit two consecutive weak forehands. But the blip was temporary and, once again, his rival could not take advantage of his inconsistency. At 3-1, del Potro saved a break point but fluffed a forehand on the second one, bringing Federer back into the match. Hitting more confidently toward the end, Federer broke to go up 6-5 and saved a break point in the next game before closing out the match with his 10th ace. "I think I got two chances to win the match," del Potro said. "But in the end you have to be focused and to find the winners. I made the mistakes, and he was there really focused to take the chance." The mark of the champions. Vincent Lecavalier Jersey . Brazilian striker Brandao opened the scoring with a header in the 55th minute before winger Franck Tabanou volleyed home from close range to double the lead in the 61st. Martin St. Louis Jersey . Pospisil, whose season-ending goal is to improve his ATP Tour ranking enough to qualify for one of the 32 seedings at Januarys Australian Open, dominated Karlovic in 59 minutes. The world No. 40 never faced a break point and limited the big mans threatening ace count to a mere eight, while striking five key aces of his own. http://www.hockeylightning.com/customized/ . -- Brady Heslip scored a season-high 20 points to help Baylor beat No. Steven Stamkos Jersey .Y. -- Cory Schneider has to make the most of his opportunities to guard the New Jersey Devils net to earn more playing time. Tampa Bay Lightning Jerseys . According to TSN Hockey Insider Bob McKenzie, the deal will pay Schenn $2.25 million in the first year and $2.75 million in the second year. In 82 games with the Flyers in 2013-14, Schenn scored 20 goals and added 21 assists.(SportsNetwork.com) - There may not be a better 60-minute team in the NHL this season than the Calgary Flames. The Flames attempt to build off their latest comeback effort on Monday night as they play host to a Winnipeg Jets club in danger of matching its longest losing streak of the season. Calgary is coming off its league-leading ninth victory of the season in which it trailed after two periods. In danger of falling to the lowly Edmonton Oilers on Saturday, the Flames scored four times in the third period to rally for a 4-2 win. Lance Bouma scored twice, while Paul Byron and Sean Monahan also scored. Mikael Backlund and David Jones had two assists each, and Jonas Hiller made 17 saves in his clubs sixth victory in eight games. We generate confidence from all those comebacks that we do, Calgary head coach Bob Hartley said. We never quit, and we knew that once we got one, wed get going. Monahans goal kept the forward in great form as of late, with the second-year skater having tallied five goals and two assists over his past seven games. Jiri Hudler did not play on Saturday due to illness and is questionable for this game. Calgary plays the fourth contest of a six-game homestand tied with the Vancouver Canucks for third place in the Pacific Division. Hiller is 1-2-1 with a 2.87 goals against average and .dddddddddddd908 save percentage in five games (4 starts) versus the Jets, who have lost five of their past seven meetings with the Flames. Winnipeg, though, has taken two straight in Calgary after losing each of its first six trips to the city. The Jets hope to snap a three-game slide tonight as special teams hurt them in a 5-2 loss to the Dallas Stars on Saturday. Four of the five goals Winnipeg allowed were on Dallas power plays, while the Jets failed to score on their two chances on the man advantage. Andrew Ladd and Toby Enstrom scored for the Jets, who have lost three straight for the first time since a season-high four-game slide from Oct. 11-19. Michael Hutchinson gave up all five goals on 32 shots. I dont think were executing as well as we were, said Jets forward Mathieu Perreault. Like I said, they got some good players on the power play. Winnipeg, a current wild card holder, is four points behind the Chicago Blackhawks for third place in the Central Division and will also visit the Vancouver Canucks on Tuesday. With Hutchinson having made a rare second straight start on Saturday, Ondrej Pavelec appears to be the likely starter for this game. He is 1-3-0 lifetime versus the Flames with a 3.55 GAA and .861 save percentage in four meetings. 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