Atletico Madrid have confirmed striker Diego Costa suffered a hamstring injury in Thursday s Europa League clash with Sporting CP.
The Spain international was withdrawn in the second half of the 1-0 quarter-final second-leg loss to the Portuguese side in Lisbon and was sent for further tests.
After undergoing medical exams this Friday, April 13, he has been diagnosed with a hamstring injury to his left leg, Atleti confirmed in a statement via their official website.
The club were unwilling to put an estimated time frame on the former Chelsea forward s recovery.
It is expected Costa will at least miss Sunday s LaLiga clash with Levante, while he is also likely to be a doubt for the following two games against Real Sociedad and Real Betis.
Atleti will hope to have the 29-year-old available for the first leg of their Europa League semi-final tie against Arsenal at the Emirates Stadium on April 26.
Atlético have already played an English club in the semi-finals, eliminating Liverpool on away goals in 2009/10 on their way to lifting the trophy (1-0 home, 1-2 away)
— UEFA Europa League (@EuropaLeague)