Barcelona have confirmed that Ousmane Dembele will miss the rest of the season after undergoing surgery.
The winger was already recovering from a hamstring injury when he suffered another setback in training last week.
Scans confirmed he had ruptured the tendon in his proximal hamstring in his right thigh and he was sent to Finland for an operation.
The news means Barcelona will be allowed to make an emergency signing outside of the transfer window due to fitness problems. Spanish FA (RFEF) rules say a team can sign a player from another Spanish side if they have a player ruled out for five months or more.
The Camp Nou outfit are also without injured striker Luis Suarez, who had knee surgery last month and is also not expected to return this season.
Quique Setien's team tried to bring in another attacker in the January transfer window to replace the Uruguay international, but were unable to agree a deal for any of their targets.
Valencia frontman Rodrigo was Barca's top target in January but they backed out because of the €60 million (£51m/$66m) fee that Los Che demanded.
Real Betis forward Loren was next in line, while there was also interest in Inter striker Lautaro Martinez, Arsenal's Pierre-Emerick Aubameyang and Fernando Llorente of Napoli, but no deal came to fruition before the transfer period ended.
Reports suggest that the club will now try to lure Willian Jose from Real Sociedad, having also considered a move for him last month. The 28-year-old Brazilian joined the Basque outfit in 2016 and has netted eight times in 22 appearances in the Spanish top-flight this season.
The 32-year-old, who has scored 13 goals in 28 games for Getafe in the current campaign, has a €10m (£8m/$11m) release clause in his contract.