#4: Lucas Perez
Perez has returned from his loan to Deportivo La Coruna. He scored nine goals and provided eight assists last season.
Only Lionel Messi made more chances in La Liga in 2017/18 than Perez. However, he suffered a goal drought lasting almost five months.
Lazio has enquired about Perez's availability and Emery may sell him as he can't guarantee the 29-year-old regular playtime.
#3 : Jack Wilshere
Once been described as the successor to Denis Berghkamp at Arsenal, Jack Wilshere was never able to fulfill his potential. His career was mostly destroyed by his injuries.
Wilshere's contract will end this summer and has been offered a contract with a pay cut but the player is clearly unhappy with it. He had also hinted that he may leave the club.
With Toreira probably coming in, Xhaka signing a new contract and Arsenal interested in Mario Gotze, it is not clear about the role Wilshere has to play at the club.
If Wilshere chooses to leave, the most likely destination would be Westham. Other potential buyers are Crystal Palace, Juventus, Everton, and wolves.