7) Mats Hummels (Borussia Dortmund)
One of the best defenders in the world, Borussia Dortmund centre-back Mats Hummels has supposedly snubbed Manchester United, so could be a realistic signing for Arsenal. The German international has been linked with the club before.
8) Isco (Real Madrid)
Linked several times with Arsenal, Isco is one of the best playmakers in the world on his day and would be another signing to signal major intent for next season.