Kei Nishikori faces Marin Cilic in his final group match of the ATP World Tour Finals on Friday evening, knowing he needs a win to reach the last four.The pair will be on court shortly after 8pm and you can see the match live on Sky Sports 3 HD.Nishikori has won one and lost one so far this year at the O2 Arena and can still finish in any of the top three positions in the group. Cilic lost his first two matches and is already out. Nishikori takes fine form into the match, having outplayed Stan Wawrinka in his opening match and then taken Andy Murray to three sets in his second. John McEnroe Group Won-Lost Sets Games Andy Murray 2-0 4-1 30-20 Kei Nishikori 1-1 3-2 27-23 Stan Wawrinka 1-1 2-2 19-24 Marin Cilic 0-2 0-4 17-26 Cilic, on the other hand, has not yet won a set and needs to make drastic improvements to salvage some success from the tournament. Six months half price Upgrade to Sky Sports to watch Man Utd v Arsenal on Saturday and get the first six months half price Nishikori has won seven of the pairs previous 12 meetings, but Cilic prevailed in the last two, at Wimbeldon in July and Basel last month.Nishikori said: Its not going to be easy. He has a great serve. That match [in Basel] he played really aggressive, so I have to really focus to beat Marin. Highlights of Nishikoris epic match with Andy Murray Cilic added: Im going to definitely enjoy the match against Kei. I feel that I want to obviously step up a little bit my game. Im feeling that my tennis is not far from being on a good level. So thats another good match against a great player to have.Earlier in Fridays evening session, Feliciano Lopez and Marc Lopez face Raven Klaasen and Rajeev Ram in the Fleming/McEnroe Group of the doubles competition. Fleming/McEnroe Group Won-Lost Sets Games H Kontinen/J Peers 2-0 4-0 25-16 R Klaasen/R Ram 1-1 2-2 20-21 F Lopez/M Lopez 1-1 2-3 22-25 P Herbert/N Mahut 0-2 1-4 21-26 Both pairs have won one and lost one so far this week and need a victory to seal passage to the semi-finals.Klaasen and Ram won the only previous encounter between the two pairs.Watch every day of the ATP World Tour Finals, from November 13-20, live on Sky Sports. Full schedule here.Upgrade to Sky Sports now to watch Man Utd v Arsenal this Saturday and get the first six months half price!Also See:Djokovic eases past GoffinMurray targets perfect SundayMurray beats Nishikori in epicShots to watch at the O2Where to Buy Cheap Jerseys . Toronto has dropped games to Indiana and Miami since a five-game winning streak and closed out a three-game road trip at 1-2. 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"The car balance is decent, but I think we can still improve," Vettel said.Two Ulster and Ireland rugby stars have denied wrongdoing after being questioned by police in connection with a number of alleged sexual offences.Paddy Jackson and Stuart Olding were two of three men arrested and interviewed in relation to alleged incidents at a property in south Belfast. The men were released pending a police report being sent to prosecutors for assessment.The alleged offences and arrests happened in June but details have only now emerged.A statement from Ulster Rugby made clear the men maintain their innocence.Paddy Jackson and Stuart Olding have been assisting the PSNI [Police Service of Northern Ireland] with inquiries, it said. The players deny any wrongdoing and have not been charged with any offence. As no charges have been brought forward, it would be inappropriate to comment further.A separate statement from Jacksons lawyers, KRW Law, said: He rejects completely any allegations made against him. Patrick has cooperated fully with police in their inquiries and we have been liaising with police on his behalf.We are both disappointed and indeed concerned that this information has been leaked to the press before the investigation has concluded and well in advance of any final decision. This has the potential to be prejudicial to ouur clients interests.dddddddddddd.We will not hesitate to take all necessary steps to protect his legal position as he is entitled to the presumption of innocence. We urge the media to restrain from any damaging speculation.Jackson was not included in Irelands 27-man squad travelling to Chicago to play New Zealand on Saturday. The Irish Rugby Football Union [IRFU] said the fly-half was left out of the party for personal reasons.Olding is currently out of action with a hip flexor injury.Jackson, 24, has been capped for Ireland 16 times while centre Olding, 23, has played four times. The two Belfast men are established stars for Ulster Rugby and have played regularly this season.The PSNI said: Police arrested two men aged 24 and one man aged 23 on Thursday 30 June in relation to a number of sexual offences, reported to have taken place at a property in south Belfast on 28 June.The men have been interviewed and released from custody. A file will be prepared for submission to the Public Prosecution Service [PPS]. A fourth man aged 24, will be reported to the PPS in relation to this incident for perverting the course of justice. ' ' '