2) Joel Campbell
Next on the way out could be another promising young forward in Joel Campbell, according to the Daily Star. The 22-year-old has spent the last three seasons out on loan in a bid to gain a work permit, and although he has been heavily involved for Arsenal in pre-season, he is seemingly concerned about a potential lack of first-team opportunities at the Emirates Stadium this season, leading to interest from Turkish giants Galatasaray. The clubs could be set to hold talks over the transfer of the versatile attacking player, who caught the eye for his national side Costa Rica at this summer’s World Cup.