Arsenal’s midfielder Mesut Ozil, the playmaker whose contribution had been praised during the opening months of the Premier League campaign, is at the wrong end of criticism recently. Pic/Getty Images 

London: Arsene Wenger knows Arsenal have no margin for error when they attempt to revive their Premier League title challenge against West Bromwich Albion today. The visit of Tony Pulis' side to the Emirates Stadium presents the Gunners with an opportunity to bounce back after successive defeats to Everton and Manchester City that have undermined their claim to be genuine challengers this season.