I appreciate the sarcasm in the question. I think that the brainbox Rooney may have a point. The likes of Stoke and Birmingham have a number of journeymen defenders and midfielders who would look to prevent Messi from playing football. Look at how Stoke bruised Arsenal when they hosted Arsenal at Britannia Stadium.
If Stoke and Birmingham play proper football, Messi would roast them. However, if they resort to bruising tactics as they are inclined to do against technically skilled and gifted players, Messi might get injured against them.