Diego Costa is expected to resume light training today before deciding whether he will be fit for the game on Saturday v Real Madrid.
This summer Diego Costa is expected to make a move to Chelsea in a deal said to be worth around £32 million.
The Brazilian has banged in the goals for Atletico Madrid this season but he is facing a race against time to make it back to full fitness in time to play his final game for the club. Los Colchoneros are in action against Real Madrid on Saturday in the Champions League final but for Costa it might be a date with destiny that he misses out on.
He aggravated a previous injury during the club's final game of the season against Barcelona, a 1-1 draw which saw them win the La Liga title.
But the injury looked serious, and for many it appeared Costa would not only miss the Champions League final - but also the World Cup.
That does not however seem to be the case.
Costa has gone for controversial treatment on his right thigh in Serbia - under the watchful eye of Dr Marijana Kovacevic - well known for her use of horse placenta in the treatment of muscular injury.
But he was in Belgrade for less than a day. He is now expected to train at some point Thursday and will then be assessed by the medical team, who will decide if he is fit for Saturday.