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. Alize Johnson Jersey . Notes on Bergeron, Marchand, Gorges, Vanek, Gaborik, Doughty, Hiller and more. BRUINS STORM BACK TO TAKE GAME TWO The Boston Bruins rallied from a 3-1 deficit, scoring four unanswered goals, to win Game Two, 5-3 over the Montreal Canadiens. Cory Joseph Jersey .K. Subban and Matt Duchene will be the two skaters sitting out the teams opening game. http://www.cheappacersjerseys.com/?tag=c...-sabonis-jersey. -- Wichita State is all alone in the record book. Al Jefferson Jersey . -- Two nights after losing to the Eastern Conferences worst team, the Phoenix Coyotes handled the best. Paul George Jersey .Y. -- The Buffalo Bills have fired receivers coach Ike Hilliard.PHILADELPHIA - Phoenixs Eric Bledsoe smiled and explained he was only joking when he said the top-ranked Kentucky Wildcats could defeat the winless Philadelphia 76ers in a series.No harm, no foul.Well, not quite.He might have wished he could take it back after Nerlens Noel knocked him on his back only 30 seconds into the game. Noel showed some rare fight for the hapless Sixers, wasting no time sticking up for his team, even if it meant former Wildcat-on-Wildcat abuse.Bledsoe shook off the foul and the one-liner to turn this one into the latest laughter in Philly.Isaiah Thomas scored 23 points and Markieff Morris had 18 to lead the Suns past the Sixers 122-96 on Friday night.The Sixers have lost their first 12 games and are just six losses shy of matching the 2009-10 New Jersey Nets for worst start in NBA history.They need four more straight losses to top the 1972-73 Sixers for worst start (0-15) in team history and could challenge those 76ers as the worst 82-game season team (9-73) in NBA history.I respect those guys over there, Bledsoe there. We could have come out and lost this game.Bledsoe said this week Kentucky could beat the Sixers in a playoff series and Philadelphia might be able to take one game. Noel failed to find the humour and went after Bledsoe and fouled him. Bledsoe popped right up and ran his chest into Noel. The two exchanged words and had to be separated as the crowd cheered in delight.Bledsoe said he was warned by an unnamed Sixer that he would get mauled in the paint.Word got back to me, he said. You could tell (it was intentional). Look at the tape.Noel, who had three points and five rebounds, said he was just trying to protect the rim.I thought I blocked the shot, at first, he said. Then I felt his head. Its nothing personal.Perhaps fueled by Noels early moxie, the Sixers grabbed a nine-point lead and led 27-26 at the end of the quarter.Stick that quarter on Philadelphias season highlight reel. There was nothing else to pick the rest of the game.In the final box, Noels foul meant nothing.I dont know what message youre going to send, Suns coach Jeff Hornacek said. So you fouled him hard. Bigg deal.dddddddddddd.The Suns shot 69 per cent in the first half and easily shook off the early challenge with a 20-4 run to win their third straight game.The Suns scored 41 points in the second quarter. Thomas opened the quarter with a driving layup for the lead, Noel clanged both free throws and Gerald Green hit a 3-pointer to turn the game around.Thomas and Green sparked a bench effort that saw the Suns go 14 of 17 in the half for 36 points. The Sixers scored 44 total points in the half.Thomas made all five shots from the floor, all five free throws and was 2 of 2 from 3-point range for a flawless 17 points.Six other Suns scored in double figures. The Suns led by as many as 34 points and made 21 of 23 free throws.Phillys K.J. McDaniels muffed an alley-oop and had a layup waved off at the horn in the third. With the Sixers down 31 in the third, what was left of another thin crowd booed the Sixers off the court headed into a timeout.The Suns rested their starters in the fourth.We tried to tell those guys to come out in the third quarter and really go after it so we could rest, Hornacek said.Michael Carter-Williams led the Sixers with 18 points.The Sixers were left hoping Saturdays game at New York will be the one that ends the winless skid.TIP-INSSuns: P.J. Tucker was whistled for a technical foul. ... Anthony Toliver and Marcus Morris each hit three 3-pointers. The Suns hit 13s on 31 attempts (42 per cent).76ers: Philadelphia forward JaKarr Sampson was assigned to the Delaware 87ers of the NBA Development League. ... The 76ers havent won since last seasons finale on April 16. ... In NBA history, two teams have started 0-13; three have started 0-15; one started 0-16; two started 0-17 and the Nets were 0-18, according to STATS LLC. ... Carter-Williams, Noel and Tony Wroten started together for the first time this season.POINT TOTALS:The Suns scored a season-high 122 points, the sixth time they have scored 110-plus points this season. The Sixers have allowed 110 or more points five times this season, including 120-plus three times.UP NEXT:Suns: At Indiana on Saturday.76ers: At New York on Saturday. Cheap Buffalo Sabres GearWholesale Calgary Flames JerseysCheap Adidas Colorado Avalanche JerseysMontreal Canadiens Outlet StoreWholesale New Jersey Devils JerseysAdidas Arizona Coyotes JerseysCheap Adidas Boston Bruins JerseysCheap Adidas Carolina Hurricanes JerseysChicago Blackhawks Shop Free ShippingWholesale Columbus Blue Jackets JerseysDallas Stars Shop Free ShippingCheap Adidas Detroit Red Wings JerseysAnaheim Ducks Jerseys ChinaWholesale Edmonton Oilers JerseysFlorida Panthers Shop Free ShippingWholesale Los Angeles Kings JerseysMinnesota Wild Outlet StoreCheap Adidas Nashville Predators JerseysCheap Adidas New York Islanders JerseysNew York Rangers Winter Classic JerseysCheap Adidas Ottawa Senators JerseysCheap Adidas Philadelphia Flyers JerseysWholesale Pittsburgh Penguins JerseysCheap Adidas San Jose Sharks JerseysSt. Louis Blues Winter Classic JerseysWholesale Tampa Bay Lightning JerseysToronto Maple Leafs Outlet StoreVancouver Canucks Outlet StoreCheap Adidas Vegas Golden Knights JerseysCheap Adidas Washington Capitals JerseysCheap Adidas Winnipeg Jets Jerseys ' ' '