Arsenal summer signing Jurrien Timber has been injured since the opening day of the season, but could be set to return soon. Timber arrived from Ajax for around £34m, and looked an instant hit as he impressed in pre-season and the Community Shield, but disaster then struck as he injured a cruciate ligament against Nottingham Forest on his Premier League debut. Arsenal will travel to the Etihad Stadium on Sunday to face Manchester City in what will be a significant game in the Premier League title race, and Mikel Arteta may be handed a welcome boost as Timber might be fit to return. The Dutchma…