Chelsea’s with English Premier League trophy 2014-15. © AFP London: CHELSEAManager: Jose Mourinho (POR)2014-15 position: champions; FA Cup: fourth round; League Cup: winners; Champions League: last 16Transfers in: Asmir Begovic (Stoke, £8million), Nathan (Atletico Paranaense/BRA, £3m), Danilo Pantic (Partizan Belgrade/SRB, £1.2m), Radamel Falcao (Monaco/FRA, Loan)Transfers out: Filipe Luis (Atletico Madrid/ESP, £16m), Petr Cech (Arsenal, £10m), Josh McEachran (Brentford, £750,000), Gael Kakuta (Sevilla/ESP, Undisclosed), Didier Drogba (Montreal Impact/CAN, Free), Christian Atsu (Bournemouth, Loan), Mario Pasalic (Monaco/FRA, Loan), Izzy Brown (Vitesse Arnhem/NED, Loan), Lewis Baker (Vitesse Arnhem/NED, Loan), Marco van Ginkel (Stoke, Loan), Tomas Kalas (Middlesbrough, Loan), Patrick Bamford (Crystal Palace, Loan), Danilo Pantic (Vitesse Arnhem/NED Loan), Dominic Solanke (Vitesse Arnhem/NED, Loan)- Led by a serial winner in Jose Mourinho and bolstered by last season’s Premier League and League Cup triumphs, Chelsea look a good bet to live up to their billing as the bookmakers’ favourites to retain the title.The Blues would also dearly love to mount a stronger challenge for the Champions League after a frustrating last 16 exit against Paris Saint Germain last term.But with Diego Costa’s fitness still a major concern as the Spain striker battles a recurring hamstring problem, there is no room for complacency and Mourinho must…