Arsenal

Gyokeres will be assessed in the coming days but is expected to build his levels of fitness progressively before featuring for Arsenal, coach Mikel Arteta said in a press conference. "Well I think he hasn't had a single training session with the team since the last game with Sporting when they became champions. So we will assess him tomorrow, he's done all the medicals, everything is looking good but to get him up to speed with the right levels of fitness I think is very important. So we're not going to stop him, we want him with us as quick as possible but we'll have to assess and the medical team will do that."

Mosquera wasn't on the matchday squad for Sunday's victory against Newcastle in a pre-season friendly as he is still building his fitness, coach Mikel Arteta said in a press conference. "Because he needs to start to pick up the feelings again. He played the under 21 Euros, then he didn't really train with Valencia then that signing period was extended a little bit and the conditions here are really tough and there's a lot of information for him, a lot of physical demands that we put in so we're going to have to manage him slowly."

Gyokeres has completed a transfer to Arsenal from Sporting, according to his new club.

Mosquera has completed a transfer to Arsenal from Valencia, according to his former club.

Saliba (hamstring) started and went 65 minutes in Wednesday's pre-season friendly against AC Milan, confirming his return from injury.