LUIS SUAREZ could be facing months on the sidelines after Barcelona confirmed he is to have surgery on his right knee. The 32-year-old has chipped in with 25 goals and 13 assists in 39 games this season, but he will now undergo the knife as he looks to be fit for the start of next term. Barca said in an official statement: "Luis Suarez has an medial meniscus injury in his right knee and surgeon Dr.Cugat will perform arthroscopic surgery on the Uruguayan under the supervision of the club's medical staff. "The outcome of the process and an estimate of how long the striker will be out will be announced following the surgery." It's unclear whether Suarez picked up the injury during the 4-0 loss against Liverpool on Tuesday as the Blaugrana crashed out of the Champions League. The former Reds fan favourite played the whole match at Anfield, but was booed on his return to Merseyside as he collided with Andy Robertson - forcing the Scotsman to go off at half-time. With Barca having already wrapped up the La Liga title, Ernesto Valverde's side may have been delaying Suarez to have surgery in the event of if they made the final on June 1.