Mikel Arteta has confirmed William Saliba, Declan Rice and Riccardo Calafiori all suffered injuries agianst Crystal Palace.
Saliba did not reappear for the second half at Emirates Stadium, while Rice and Calafiori were substituted late on as the Gunners won 1-0 to extend their lead at the top of the Premier League to four points.
Arteta also confirmed Gabriel Martinelli “felt something” after he limped down the tunnel after the game.
Speaking after the game, Arteta said: “The first one was Willy that obviously had to be out after the first half.
“Declan as well was struggling from the first half with a knock that he took, and who was the other one? Ricky, as well. So yeah, let’s see how they recover.
"On Willy, there are two things related to his substitution and with Declan I don't really know because it was a knock. But I don't know if it was the calf or the Achilles or what exactly it was."
Asked if Martinelli was OK, Arteta said: “Yeah, I think so.
“We have to check that one. He was a bit uncomfortable. He said he felt something. We don’t know whether it’s a muscular issue or not. Tomorrow we’ll have more news.”
Arteta also revealed Bukayo Saka has been unwell.
“He hasn’t trained really,” said Arteta. “So we didn’t know whether he was going to be fit.
“He made a big effort to be available today. The doctor was brilliant as well to guide us, to give us the best opportunity as well to be in the best possible condition.
“So he’s managed to play a few minutes, but the longer the game went he was going to fatigue and risk an injury. And we didn’t want to take that risk.”
