Gibbs set for three month layoff
The Premier League club said on their website that the player would undergo surgery on Wednesday.
Arsenal, who face leaders Chelsea in the big Premier League match at the weekend, had better news about William Gallas after the French defender had a bloody collision with team-mate Andrei Arshavin.
"Gallas has an ankle problem and a swollen eye," said manager Arsene Wenger.
"I think he will recover for Sunday, we hope so. It wasn't concussion but he couldn't see anymore because his eye was swollen.
"Arshavin has some staples in his head. He will be available for Sunday," he added.