Premier League team news: Chelsea v Swansea
Chelsea manager Jose Mourinho does not know whether Diego Costa will be fit when the Premier League champions begin their title defence at home to Swansea on Saturday.
Costa missed last Sunday's Community Shield loss to Arsenal with a recurrence of the hamstring problem which has persistently plagued him in recent seasons.
Radamel Falcao and Loic Remy are vying for the starting spot if Costa is unavailable, and Chelsea have no further concerns.
Swansea manager Garry Monk has a fully-fit squad to choose from for his side's opener at Chelsea.
Bafetimbi Gomis has been troubled by a hamstring injury but the French striker played in Swansea's final pre-season game against Deportivo La Coruna last weekend and reported no reaction.
Ghana forward Andre Ayew is poised to make his debut against the champions following his move from Marseille, but fellow summer signings Kristoffer Nordfeldt, Franck Tabanou and Eder could all start on the bench.
Chelsea squad: Courtois, Begovic, Blackman, Terry, Cahill, Ivanovic, Azpilicueta, Zouma, Ake, Hazard, Fabregas, Matic, Oscar, Willian, Mikel, Ramires, Cuadrado, Loftus-Cheek, Traore, Costa, Remy, Falcao, Moses.
Swansea squad: Fabianski, Naughton, Fernandez, Williams, Taylor, Ki, Cork, Shelvey, Routledge, Ayew, Gomis, Nordfeldt, Rangel, Bartley, Amat, Tabanou, Fulton, Britton, Emnes, Dyer, Eder, Montero, Grimes, Sigurdsson.