Mikel Arteta says Gabriel Jesus' injury is a "huge concern" for his side after the Brazilian forward was carried off on a stretcher in Arsenal's FA Cup defeat to Manchester United.

Jesus came off in the first half of Arsenal's penalty shoot-out defeat to Ruben Amorim's side after a collision with Bruno Fernandes in his penalty area.

The injury adds to Arsenal's treatment chart list with Bukayo Saka a long-term absentee, while Ethan Nyanieri, Ben Uhite and Takehiro Tomiyasu are also out.

"Big concern. That's my feeling," Arteta said after the match. "Leaving on a stretcher in a lot of pain, touching his knee, doesn't look good. It's the other knee [from the one injured in the World Cup]. It's the feeling he had, he had to leave," Arteta stressed, as reported by KosovaPress.