Diego Costa has officially completed his move from Chelsea to Atletico Madrid, the clubs announced on Tuesday evening.
After Costa fell out of favour at Stamford Bridge last season, a deal was agreed last week to allow Costa to return his former club.
And Costa has now agreed personal terms with Atletico and can join training before he's registered to play at the opening of the next transfer window on Jan. 1.
"I am very happy to be returning home," Costa told Atletico's website. "I have always said...