Speaking to reporters, the Spanish coach said: "He felt something in his hamstring. He couldnât continue. He will have to be assessed. Pretty worried about that one."
It's Saka's third hamstring injury of the season. Arteta added: "Iâm not sure if itâs exactly the same one [that he did earlier this season]. Itâs in the same leg. He had the third minor injury - I donât know how big this is going to be. But he already had two.â