Wenger Ready to Seal Reus Signing if This Happens at Arsenal

Arsenal have been looking to seal new deals with star playmakers Ozil and Alexis for quite some time but no official agreement has been signed as yet.
The German international is reportedly close to signing a record deal (via Mirror) with the North Londoners but Wenger has growing concerns over the future of the Chilean attacker.
If the latest reports in the media are anything to go by then Wenger is ready to finally sign Marco Reus if Alexis Sanchez leaves the Emirates.
The Gunners were linked with a move to sign the Borussia Dortmund superstar last summer as well.
According to Mirror, the £30m-rated ($37million) German playmaker will be Arsene’s No.1 priority if the former Barcelona star does not sign a new deal with Arsenal and leaves.
Like Alexis, Marco Reus is a world class playmaker who can effectively play anywhere in the attacking third.
Last season, Alexis scored 17 goals and provided 11 assists in 41 appearances for the Gunners. On the other hand, Reus netted 23 goals and provided 8 assists in 43 games for BvB.
The only major concern with Reus is his injury record. The 27-year-old star missed the European Championships and still has not played a single game for Dortmund this season.
In your opinion, is Reus good enough to replace Alexis?