Doesn't matter mate,m he doesn't look gfaded as a player at all, he has had absolutely ZERO injuries throughout his career, so no concern their, he has just been playing in a side that has been shunting him around to make room for more favoured players who arent as good in the role he excels at and still prodcuing numbers and goals/assists equal to our best, Rooney being the prime example of that, also united have lacked the type of movement around him that makes him excel - at us hopefully with ross, deulofeu, mirallas, lukaku and whoever else come sin we will have the type of movement and speed around him that brings the best out his game