The Blues are due at Old Trafford on Sunday, with their 18-goal top scorer looking to end a five-match run without finding the target
Marcos Alonso considers Diego Costa to be “a big-game player” as Chelsea prepare to face Manchester United in the Premier League.
The Spain international has been a key figure for the Blues this season, with his 18-goal return helping to guide them to the top of the table.
He has, however, suffered a dip in form since becoming embroiled in a distracting transfer saga during the winter transfer window and is on a five-game drought at club level, having scored just four times in 2017.