Humble Rex, it's not true that he always turns up with a good performance in a big game, but he has looked good in a few games against Chelsea. The two early crosses to Robin and Gervinho were the kind of service I'd like to see more of from him. And his goal was the fruit of him getting back to his feet rather than falling to the ground and complaining to the ref as he usually does. Once he was past the first man, Chelsea stood no chance against his pace.
I think the guy who can benefit most from Theo in this team and help make Theo more productive is Gervinho. If he can keep finding ways to come into the box to meet Theo crosses in the middle or on the far post, then we can have a faster, more dangerous attack than we had in the Fabregas era.