Philippe Coutinho is at risk of missing the remainder of Barcelona's season and this summer's Copa America after undergoing another surgery to the meniscus of his left knee.
The playmaker appeared to be reigniting his Barcelona career under new manager Ronald Koeman, playing in 12 of the Dutchman's first 15 La Liga matches in charge at Camp Nou.
However, he has not featured for Barcelona since 29 December, missing 20 matches in all competitions after rupturing his outer meniscus.
Coutinho underwent surgery in January in a bid to be available for the business end of the season and was expected to be sidelined for three months. However, according to Spanish news channel Esport 3 (via UOL), the attacking midfielder has since undergone a second surgery in Qatar to deal with his meniscus problem.
According to Barca Blaugranes, the operation saw a cyst that was leaking synovial fluid and subsequently causing swelling successfully removed. The surgery was done somewhat discreetly, with Barcelona yet to officially release a statement to confirm that it has taken place.
No time frame has been given for Coutinho's return following his second surgery, but reports suggest he is a doubt for the 2021 Copa America. The tournament takes place between 13 June and 10 July, with Brazil the current holders after their success in the 2019 competition.
This also means the Brazil international is at risk of missing the remainder of Barcelona's 2020/21 season. Barça currently sit second in La Liga, four points behind leaders Atletico Madrid with ten league matches left to play.
Barcelona face rivals Real Madrid in El Clasico on 10 April and title rivals Atletico on 9 May.
Coutinho has again been linked with a Camp Nou exit this summer, with the Catalan giants said to be keen to offload the 28-year-old in an attempt to reduce the club's debt.