Barcelona have released a statement confirming that Brazilian midfielder Rafinha underwent surgery on his torn anterior cruciate ligament on Tuesday.
The 22-year-old suffered the season-ending injury in last week's Champions League clash against Roma, just minutes after entering the field as a second-half substitute.
The date of the operation was set for Tuesday and the European champions have revealed that the surgery was 'successful', with the midfielder now expected to be out of action for the next six months.
"According to the club's medical services, Rafael Alcantara, 'Rafinha' has been operated successfully on by doctors Ramon Cugat and Ricard Pruna following the cruciate ligament right knee injury that he suffered in the game against AS Roma. The player is expected to be out for around six months," read the statement.
Rafinha is unlikely to play again for the Catalan club's first team this season.