Arsenal's Brazilian forward Gabriel Jesus is set for a lengthy spell on the sidelines after suffering what is suspected to be an anterior cruciate ligament (ACL) injury, according to British media reports on Tuesday.

Arsenal announced Gabriel Jesus suffered an ACL injury in his left knee against Manchester United in the FA Cup with the striker set to undergo surgery.

Arsenal forward Gabriel Jesus will have an operation on his left knee after sustaining an anterior cruciate ligament injury. Jesus, 27, was taken off on a stretcher during Sunday's FA Cup third round defeat by Manchester United at Emirates Stadium. The Brazilian has made 27 appearances across all competitions this season, scoring seven goals.

Arsenal striker Gabriel Jesus will undergo knee surgery after injuring the anterior cruciate ligament (ACL) in his left knee. Jesus picked up the injury last weekend during Arsenal’s defeat to Manchester United in the third round of the FA Cup.

Just when Gabriel Jesus was rediscovering his form for Arsenal, the Brazilian suffered a knee injury that will keep him sidelined for the foreseeable future.

Gabriel Jesus' knee injury is “not looking good,” Arsenal manager Mikel Arteta said Tuesday. The Brazil striker was taken off after 40 minutes in Arsenal's FA Cup loss to Manchester United on Sunday.

Arsenal have confirmed that forward Gabriel Jesus sustained a ruptured anterior cruciate ligament (ACL) during their FA Cup exit to Manchester United on Sunday.

A statement from Arsenal on Tuesday afternoon read: ‘Further to being substituted during our match with Manchester United on Sunday, Gabriel Jesus has received extensive assessments, scans and specialist reviews which have confirmed that he has sustained an injury to the anterior cruciate ligament in his left knee.

The Brazilian forward had to be taken off on a srether in the FA Cup third round defeat to Manchester United, and is now set for extended spell on the sidelines

Arteta also launched a passionate defence of Kai Havertz after abhorrent social media posts were sent to the Germany international’s wife, Sophia.

Arsenal forward Gabriel Jesus will need surgery on a serious knee injury as Gunners boss Mikel Arteta scrambles to replace the Brazilian in the January transfer window.