Novak Djokovic continues his quest to regain the world No 1 ranking with a World Tour Finals semi-final showdown against Kei Nishikori. The Serb saw his 122-week grasp at the top of the rankings ended by Andy Murray in Paris almost a fortnight ago, but he can reclaim the position depending on the outcome this week.First he must overcome Japans Nishikori and with a dominant 10-2 record in the head to head he will start Saturdays semi-final in confident fashion, especially after a week that has seen him return to somewhere close to top form. Novak Djokovic and Kei Nishikori have met in two finals this year - on Saturday they meet for a place in the World Tour Finals showpiece Djokovic lost his opening set of the week to Dominic Thiem last Sunday but recovered to win the match in three sets and followed up with another pair of victories over Milos Raonic and alternate David Goffin,He had to come through an epic content against Raonic, eventually prevailing 7-6 7-6 while he had little trouble against late replacement Goffin who was dispatched 6-1 6-2.Nishikoris last four place had already been assured after Murrays straight sets win over Stan Wawrinka earlier in the day. Having begun the week with a superb victory over Wawrinka, Nishikori lost his next two matches.Having pushed Andy Murray close in his second match before losing in three sets, he ended the group stages with another three-set defeat, losing to Marin Cilic in three sets on Friday night. World Tour Finals - Story So Far Novak Djokovic Kei Nishikori beat Dominic Thiem 6-7 6-0 6-2 beat Stan Wawrinka 6-2 6-3 beat Milos Raonic 7-6 7-6 lost Andy Murray 7-6 4-6 4-6 beat David Goffin 6-1 6-2 lost Marin Cilic 6-4 2-6 3-6 John McEnroe talks about the price of ending the year as the world No 1 While world No 5 Nishikori has been in fantastic form this season, reaching his second and third Masters finals as well as his second Grand Slam semi-final, he will have to overcome a run of form against Djokovic that has seen him lose his last nine matches against the Serb.Djokovic has won all five of their meetings this year, including victory in both the Canada and Miami Masters finals, while Nishikori has won just three sets in their contests since his last win, a memorable US Open semi-final success in 2014. Kei Nishikori has come as close as anyone to beating Andy Murray this week, losing in three sets in the group stage The pair have twice met at the O2, Djokovic winning in the group stage in both 2014 and last year where he was a 6-1 6-1 victor.The signs are ominous for Nishikori but the 26-year-old appears to be relishing the challenge against the very best these days and a win would see him beat his semi-final performance of his World Tour Finals debut a couple of years ago. Djokovic v Nishikori met in the Miami final earlier this year Djokovic v Nishikori met in the Miami final earlier this year As ever it will be a doubles match which kicks off the evening and after confirmation of their world No 1 ranking, Jamie Murray and Bruno Soares will hope to book a final place when they face Rajeev Ram and Raven Klaasen.Murrays position as the year-end No 1 was confirmed when the French pairing of Nicolas Mahut and Pierre-Hugues Hubert lost their third group game of the week on Friday.Murray and Soares claimed the Australian and US Open titles and have won two of the three matches the pair have played.Follow all the action from the O2 on Saturday when the action begins on Sky Sports 3 from 12pm and 4pm or via our live blog here at www.skysports.com/tennis. Also See: World No 1 permutations Djokovic hammers Goffin Cheap Nike Shox Shoes .ca NBA Power Rankings, ahead of the Miami Heat and San Antonio Spurs. Clearance Nike Shox . -- PGA TOUR Canada member Steve Saunders took a three-stroke lead Saturday in the Web. http://www.cheapnikeshoxfreeshipping.com/ . From filmmaker Nanette Burstein (On the Ropes), The Price of Gold revisits the saga that rocked the figure skating world ahead of the 1994 Lillehammer Olympic Winter Games: the assault on Nancy Kerrigan, and the plot that led its way back to her rival Tonya Harding. Cheap Nike Shox China . Darren Helm scored on Detroits sixth attempt in the shootout and then Jonas Gustavsson stopped Andrew Shaws shot, lifting the Detroit Red Wings to a 5-4 win over the Chicago Blackhawks on Wednesday night. Wholesale Nike Shox . The Islanders dealt Thomas Vanek to the Montreal Canadiens after less than a year on Long Island. Meanwhile, the Oilers dealt long-time sniper Ales hemsky to the Ottawa Senators on Wednesday for a fifth-round pick in 2014 and a third-rounder in 2015. Captain Alex Brosque has credited Sydney FCs stellar recruitment drive for the clubs eye-catching form to start the A-League season.The Sky Blues and Melbourne City have emerged as early frontrunners for this seasons title after impressing with back-to-back victories over the opening fortnight.And Brosque, who has scored goals coming off the bench in both games, said it was the clubs strong off-season that had propelled the team to its best ever start to a campaign.Most teams are struggling early because of the new faces they have, he said.(But) weve got Josh Brillante, Michael Zullo, Alex Wilkinson, Danny Vukovic, Bobo - half our team thats been starting these first few games, are new players.The quality in the players weve brought in have been a huge difference. The competition for places, the depth that we have at the moment, and just the good run that we had in pre-season... everyone made sure that when round one came, we were ready to go. Thats the reason why weve started so well.While Sydney FC have rocketed to the top of the ladder with twin thrashings of Western Sydney and Central Coast, Melbourne City also announced themselves as championship contenders with an emphatic derby win over Melbourne Victory.Brosquee said the Tim Cahill-led City were always going to be a heavyweight.ddddddddddddWe knew Melbourne City were going to have the firepower. Theyve started in that fashion. They look good, theyre definitely going to be up there at the end of the season, he said.Theyll be a team thats going to be hard to beat.The 33-year-old also said coach Graham Arnold moved quickly to give his team a reality check on Monday, pointing out how his team lost their way after an unbeaten opening five weeks last season.But he still urged his teammates to embrace the tag of title favourites early in the campaign.We just had a meeting and Arnies brought all our heads in very quickly. He doesnt want us getting carried away with it and rightly so, Brosque said.Its a good start but if we look at last season as well, we started the first four, five games undefeated and it didnt end too well.This season we did make a bit of noise, saying we wanted to win all trophies. It should be that way. Sydney FC has to be a club that goes into every competition wanting to win it and I think the players really embrace that this year. Cheap Throwback Baseball Detroit Tigers Jerseys Cheap Throwback Baseball Colorado Rockies Jerseys Cheap Throwback Baseball Houston Astros Jerseys Cheap Throwback Baseball Kansas City Royals Jerseys Cheap Throwback Baseball Los Angeles Angels Jerseys Cheap Throwback Baseball Los Angeles Dodgers Jerseys Cheap Throwback Baseball Miami Marlins Jerseys Cheap Throwback Baseball Milwaukee Brewers Jerseys Cheap Throwback Baseball Minnesota Twins Jerseys Cheap Throwback Baseball New York Mets Jerseys Cheap Throwback Baseball New York Yankees Jerseys Cheap Throwback Baseball Oakland Athletics Jerseys Cheap Throwback Baseball Philadelphia Phillies Jerseys Cheap Throwback Baseball Pittsburgh Pirates Jerseys Cheap Throwback Baseball San Diego Padres Jerseys Cheap Throwback Baseball San Francisco Giants Jerseys Cheap Throwback Baseball Seattle Mariners Jerseys Cheap Throwback Baseball St. Louis Cardinals Jerseys Cheap Throwback Baseball Tampa Bay Rays Jerseys Cheap Throwback Baseball Texas Rangers Jerseys Cheap Throwback Baseball Toronto Blue Jays Jerseys Cheap Throwback Baseball Washington Nationals Jerseys ' ' '