The Gunners produced a stellar performance to get over the Blues 3-1 at the Emirates, allowing them to go second on the table, and Walcott insists that the Arsenal players were not worried about their poor recent form against the reigning champions.
"We didn't think about the past. We can't change that," he said.
"We concentrated on pressing. Everyone was pressing. We didn't give Chelsea any space at all.
"We got the win but another game is just around the corner.