Chelsea beat Stoke 2-1 at home in the Premier League on April 4 . Diego Costa limped off in Sunday after aggravating his hamstring . Blues travel to QPR on the second half in a west London derby at Loftus Road .
Chelsea beat Stoke 2-1 at home in the Premier League on April 4 . Diego Costa limped off in the second half after aggravating his hamstring . Blues travel to QPR on Sunday in a west London derby at Loftus Road .