Diego Costa's move to Wolverhampton Wanderers is under threat due to work permit concerns, but the Premier League club remain hopeful of getting a deal concluded.
The Spanish international has been without a club since the turn of the year, having last played for Atletico Mineiro in Brazil. However, Wolves have looked to bring in the former Chelsea and Atletico Madrid star after new signing Sasa Kalajdzic suffered a cruciate ligament injury on his debut over the weekend.
Kalajdzic, who joined from Stuttgart on 31 August, managed just 45 minutes against Southampton on Saturday at Molineux. He is now expected to miss the bulk of the season, increasing the need for a new striker, and Bruno Lage will still hope free agent Costa can be that man with the former title winner headed to the UK.
