Arsenal suffer blow as Mikel Arteta provides William Saliba injury update

Arsenal manager also issues updates on Leandro Trossard and Kai Havertz ahead of London derby

Mikel Arteta has ruled William Saliba out of Arsenal ’s clash against Brentford.

Saliba was left out of the Arsenal squad for their trip to Chelsea on Sunday after picking up a knock in training the day before .

Arteta said after the 1-1 draw at Stamford Bridge that Saliba was due to have a test on Monday to learn the extent of his injury .

Arsenal are next in action on Wednesday night, when they host Brentford , and Arteta has given an update on Saliba.

Speaking on Tuesday morning, he said: “I am not going to be able to help you much today. We have another training session later today.

“He had a little niggle. I think it is going to be a matter of days.”

Arsenal were also without Kai Havertz and Leandro Trossard for their draw with Chelsea due to injury.

Havertz has not played since the very first game of the season after injuring his knee and undergoing surgery.

Trossard picked up a calf injury against Bayern Munich last week, when he had to subbed in the first half.

Arteta added that the Belgium international is likely to miss the Brentford clash too, but revealed the latest on Havertz: “A matter of weeks.

“He is doing really well, he did some stuff on the pitch, but he needs some time.”