The Gunners decided to move for Shkodran Mustafi after baulking at Bayer Levekusen's asking price for Toprak.
Arsenal are reportedly interested in defenders Omer Toprak and Simon Kjaer.
Manchester United, Liverpool and Tottenham Hotspur are all reported to be eyeing Bayer Leverkusen's Omer Toprak, but what should fans know about the Turkish centre-back?
A round up of news stories this morning about Tottenham Hotspur.
As a preview to tonight's Champions League tie, who would make a combined XI from tonight's sides?