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 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.

“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,” Arsenal said in a statement on Tuesday night.