Tactics, tension and talk: How does Arteta stop Arsenal's 'bottle'?

The Premier League title race has brought up many iconic images down the years. Steven Gerrard's slip and Kevin Keegan slumped over the Anfield hoardings to name just two.So what will the final significance of one Manchester City fan drinking from an Arsenal bottle in the Stamford Bridge away end be, with the momentum of the title race swinging?