Andy Murray said becoming world No 1 has not changed his mentality after beating Marin Cilic in his first match as the best player on the planet.The 29-year-old Scot overcame an unsettled start to win 6-3 6-2 in his opening round-robin tie at the ATP World Tour Finals in London.He had to save two break points in the first game and then dropped his serve in the third, but he insisted his early struggles were more down to the conditions in the O2 Arena than nerves. Murray wins debut as No 1 Andy Murray claimed his 20th win in a row by beating Marin Cilic in straight sets Speaking at his post-match press conference, he said: I havent thought about it [becoming world No 1] too much. It didnt change much for me.I didnt feel any more nervous than usual. Its just quite different conditions in there than what we have been practicing in during the week. Its a lot slower than it has been. Highlights Murrays win over Cilic Obviously, playing with a packed crowd, it changes things a bit. I think maybe some of the errors at the beginning were more getting used to playing in new surroundings again.Murray has now won 20 games in succession and can make it 21 when he faces Kei Nishikori on Wednesday in his second round-robin match. Live Tennis: ATP World Tour Finals November 15, 2016, 12:00pm Live on Get Sky Sports Get a Sky Sports pass Nishikori was in blistering form when beating Stan Wawrinka 6-2 6-3 earlier on Monday and is likely to present Murray with a far sterner challenge than the misfiring Cilic did.Murray added: I didnt see the match, but he obviously must have played very well. To win against a player like Stan with that scoreline, I dont think Stan had really any chances on Keis serve either. Murray explains his match tactics to Mark Petchey I would say this is probably his best year that he has had on the tour.He is one of the best players in the world. He has been playing very well the last few months especially.Watch every day of the ATP World Tour Finals, from November 13-20, live on Sky Sports. Full schedule here. Watch NOW TV Watch Sky Sports for just £6.99. No contract.Also See:Special Kei makes perfect startWawrinka: Injury not to blameTour Finals: Panel predictionsShots to watch at the O2Marcus Williams Womens Jersey . Booth picked up 65 caps after making her national team debut in 2002 at the age of 17. She most recently played for Sky Blue FC of the National Womens Soccer League. "It just felt like it was my time to move on," she said in a phone interview from her hometown of Burlington, Ont. Michael Thomas Youth Jersey . -- New England Revolution goalkeeper Matt Reis is retiring after a 16-year career to become the goalie coach for the Los Angeles Galaxy. http://www.shoptheofficialsaints.com/Elite-Marcus-Davenport-Saints-Jersey/ .Y. -- The Buffalo Sabres have recalled forward Kevin Porter and defenceman Chad Ruhwedel from the minors as part of a five-player roster shuffle made by the NHLs worst team. Morten Andersen Youth Jersey ., and Rudi Swiegers of Kipling, Sask., took sixth spot on Saturday in pairs at the NHK Trophy ISU Grand Prix figure skating competition. Sheldon Rankins Saints Jersey . The 27-year-old Scrivens will be joining his third NHL club since signing with the Toronto Maple Leafs as a free agent in 2010. The move also reunites with him with head coach Dallas Eakins from their time together with the American Hockey Leagues Toronto Marlies.Bournemouth will have to pay a fine of £7.6m after they broke Financial Fair Play (FFP) rules on their way to securing promotion to the Premier League last season.Clubs are allowed a maximum deviation of £6m per season without punishment under the FFP agreement but the Cherries posted a £38.3m loss in 2014/15 as they won the Sky Bet Championship.The was an increase from a loss of £10.3m the previous season, predominantly due to player and staff wages, which rose to £30.4m, a figure more than double the clubs turnover of £12.9m.The extent of the overspend was not revealed by the Football League, but club accounts registered with Companies House have confirmed the amount to be paid by the Cherries. The Cherries were fined after breaching FFP rules It was revealed on Christmas Eve 2015 that Bournemouth, along with Fulham and Nottingham Forest, had breached FFP regulations.ddddddddddddFulham and Forest were subsequently placed under a transfer embargo after they broke the FFP rules while in the Championship.Club accounts also showed it cost the Cherries £4.6m to bring the Vitality Stadium up to the standards required for the Premier League.Also See:Howe plays down Everton linkBaines strikes in Everton winEverton 2-1 Bournemouth recapBournemouth video ' ' '