Berdych arrives in London off the back of a SF run at the ATP Masters 1000 Paris (l. to Raonic). It

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MONDAY PREVIEW: Group A takes centre stage on Day 2 of the Barclays ATP World Tour Finals . A star-studded evening session is headlined by world No. 1 Novak Djokovic american airlines center dallas texas tickets and top-ranked doubles duo Bob and Mike Bryan . Djokovic opens his bid for a fourth season-ending crown against US Open champion and Final Showdown debutant Marin Cilic , with the Serb winning all 10 of the pair s previous meetings. The Bryan brothers take a 2-0 H2H record into their match-up with Australian Open winners Lukasz Kubot and Robert Lindstedt . The afternoon session sees Stan Wawrinka and Tomas Berdych face off for the 15th time. The Swiss leads their FedEx ATP H2H series 9-5, including victory in their most recent clash in the semi-final at this year s Australian Open . In Monday s opening match, Alexander Peya and Bruno Soares take on Jean-Julien Rojer and Horia Tecau .
THREE IN A ROW? Djokovic american airlines center dallas texas tickets is bidding to become the first player to win the season finale three times in a row since Ivan Lendl achieved the feat from 1985-1987, the year in which Djokovic was born. The Serb has won this title in 2008 (d. Davydenko), 2012 (d. Federer) and 2013 (d. Nadal). He is also looking to become just the fifth player, after Federer (6), Pete Sampras (5), Ivan Lendl (5) and Ilie Nastase (4) to win this event four or more times.
27 NOT OUT: Djokovic is currently on a 27-match winning run indoors, which dates back to him winning the Barclays ATP World Tour Finals in 2012. His last loss came against Sam Querrey in his opening match at Paris-Bercy that same year, with the American coming back from losing the first set 6-0. Djokovic s streak is the third longest winning run indoors in the Open Era.
NO. 1 RANKING UPDATE: Djokovic is bidding to finish a season at the summit of the Emirates ATP Rankings for the third time in the past four years (also 2011, 12). The Serb arrives in London with a 1,310-point lead over No. 2 Federer in the race for year-end No. 1. Federer, at 33 years old, is attempting to finish american airlines center dallas texas tickets a year as the oldest No. 1. He is also looking to end a year atop the rankings for the sixth time, which would equal Pete Sampras american airlines center dallas texas tickets record.
11-YEAR DOMINANCE: This will be the 11th consecutive year the No. 1 ranking on the ATP World Tour is held by either Djokovic, Federer or Rafael Nadal . No other trio in the history of the Emirates ATP Rankings (since 1973) has dominated No. 1 for an 11-year span.
DJOKOVIC VS. TOP 10: Djokovic american airlines center dallas texas tickets compiled an ATP World Tour best 15-5 record vs. Top 10 opponents this year. He was the only player during the season not to lose to a player outside the Top 20. His lowest-ranked loss came to No. 20 Tommy Robredo at ATP Masters 1000 Toronto.
CILIC S JUMP: Barclays ATP World Tour Finals debutant Cilic has made the biggest jump into the Top 10 of the Emirates ATP Rankings from the previous year, climbing from No. 37 to No. 9. He rose as high as No. 8 on October 13. The last player to improve his ranking from outside the Top 30 into the Top 10 in a single season american airlines center dallas texas tickets was Janko Tipsarevic (No. 49 to No. 9 in 2011). Cilic is the first Croat to finish a season inside the Top 10 since Ivan Ljubicic (No. 5) and Mario Ancic (No. 9) in 2006. The 26-year-old has a 16-1 record indoors this season, with two of his four titles coming under a roof.
FIFTH TIME LUCKY FOR BERDYCH? Berdych, who returns to the Barclays ATP World Tour Finals for the fifth time, has lost all four of his opening matches at this tournament. He does, however, have a 4-0 record in his second group matches. The 29-year-old is set to finish a season in the Top 10 of the Emirates ATP Rankings american airlines center dallas texas tickets for the fifth consecutive year. His season was highlighted by reaching a career-best five finals, winning two ATP World Tour titles, which both came indoors in Rotterdam and Stockholm. Five of the Czech s 10 career titles have now come indoors.
WAWRINKA EYEING STRONG FINISH: Last year s semi-finalist Wawrinka will be looking to bounce back from recent struggles with a strong showing at The O2. The Swiss has posted a 1-4 mark at his last four tournaments, with opening round losses in Tokyo (l. to Ito), Shanghai (l. to Simon), Basel (l. to Kukushkin) and a 3R exit in Paris (d. Thiem, l. to Anderson). He is one of three Swiss players american airlines center dallas texas tickets to qualify for the season-ending championship along with Federer (13 times) and Jakob Hlasek , who reached the SF in 1988 (d. Lendl, Agassi, Mayotte, l. to Becker).
Wawrinka returns to the Barclays ATP World Tour Finals for the second year in a row. He reached the SF on his debut last year with a 2-1 record in RR play (d. Berdych, Ferrer; l. to Nadal), before falling in straight sets to eventual champion Noval Djokovic.
Wawrinka opened the 2014 season with victory in Chennai (d. Roger-Vasselin) and a first Grand Slam title at the Australian Open . In Melbourne, the Swiss posted three Top 10 wins en route to victory, including a four-set win over world No. 1 Rafael Nadal in the final. At world No. 8, he was the lowest-ranked major winner since world No. 44 Gaston Gaudio at Roland Garros in 2004. He also broke the streak of 16 straight Grand Slam titles won by Federer, Djokovic, Nadal and Murray.
In April in Monte-Carlo, american airlines center dallas texas tickets Wawrinka clinched the first ATP Masters 1000 title of his career, once again defeating three Top 10 players en route to the title (d. Federer in the first all-Swiss final in 14 years). It was just his second win over his compatriot in 15 meetings between the pair.
Wawrinka also made the QF at both Wimbledon american airlines center dallas texas tickets (l. to Federer) and the US Open (l. to Nishikori), finishing the year with a 13-3 record at the Grand Slams. He fell in the 1R at Roland Garros american airlines center dallas texas tickets (l. to Garcia-Lopez).
In September, Wawrinka helped Switzerland reach the Davis Cup final for the first time since 1992, defeating Fabio Fognini in a 3-2 victory over Italy. They play France in the final at the end of November.
Berdych is making his fifth consecutive appearance at the Barclays ATP World Tour Finals (5-8 record). His best showing here was a SF appearance in 2011 (l. to Djokovic in opener, then beat Tipsarevic, Ferrer american airlines center dallas texas tickets in RR play), losing to Jo-Wilfried Tsonga in the final four.
Berdych arrives in London off the back of a SF run at the ATP Masters 1000 Paris (l. to Raonic). It was his second SF appearance at ATP Masters 1000 level this year, having also reached the final four in Miami in March (withdrew american airlines center dallas texas tickets vs. Nadal due to gastroenteritis).
Berdych s best string of results this year came in the opening few months of the season when he compiled a career-best 11-match winning streak, which included a ninth career title in Rotterdam (d. Cilic) and a runner-up finish in Dubai (d. No. 10 Tsonga, l. to Federer).
Berdych won his 10th career title last month in Stockholm, where he beat three qualifiers in a row before overcoming Grigor Dimitrov in the final. It marked the first time he has won the same tournament twice and just the second time he has won multiple titles in a single season (also 2012).
american airlines center dallas texas tickets Berdych compiled a 15-4 record at the Grand Slams this year, advancing american airlines center dallas texas tickets to the SF at the Australian Open for the first time (d. No. 3 Ferrer, l. to eventual champion Wawrinka) and reaching the QF at both Roland Garros (l. to Gulbis) american airlines center dallas texas tickets and the US Open (l. to eventual champion Cilic).
Djokovic is making his eighth consecutive appearance at the Barclays ATP World Tour Finals . He s a three-time champion: american airlines center dallas texas tickets 2008 (d. Davydenko) in Shanghai, and 2012 (d. Federer) and 2013 (d. Nadal) in London.
american airlines center dallas texas tickets Djokovic extended his run of winning american airlines center dallas texas tickets a major every year to four straight american airlines center dallas texas tickets years with a second Wimbledon title in July (d. Federer in 5 sets). It was his seventh Grand Slam overall. Afterwards, he returned american airlines center dallas texas tickets to No. 1 in the Emirates ATP Rankings american airlines center dallas texas tickets for the first time since the week of September 30, 2013.
At the Australian Open , Djokovic s QF loss to Stan Wawrinka brought his run of 14 consecutive Grand Slam SF appearances to an end. He missed out on completing the career Grand Slam at Roland Garros , falling to Rafael Nadal in the final. He also reached american airlines center dallas texas tickets his eighth US Open SF (l