By Chris Harris

Arsenal are a "totally different team" when Robin van Persie is firing on all cylinders.

That was the verdict of Theo Walcott after the captain grabbed a stunning hat-trick at Stamford Bridge on Saturday to help Arsenal to a 5-3 win over Chelsea.

Van Persie has now scored 28 goals in 27 Premier League games in 2011 and Walcott says the Dutchman is showing everyone what he can do when he's free of injury.

"It [his scoring record] just shows how important he is to this team," Walcott told Arsenal Player.

"He's had so many injuries and it shows that when we have a fit Robin throughout the season we are a totally different team.

"It's not a one-man show but Robin gives us that extra dimension, one that we never quite had before. We're happy and hopefully he'll stay fit and keep banging in the goals."

Watch the full interview with Theo on Arsenal Player.

Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 31 Oct 2011