Costa lets hands do the talking on superb Chelsea return

By William Schomberg LONDON (Reuters) - Returning Chelsea striker Diego Costa did not just let his predatory right foot do his talking for him on Sunday. The striker who is never far away from controversy shot the Premier League leaders towards a 2-0 win over Hull City on his return to the first team and celebrated his first-half goal with gestures that mimicked gossiping mouths. At least, that seemed to be his considered response to a wave of reports that he had been involved in a row with Chel