Former Manchester United midfielder Owen Hargreaves has expressed his disappointment at Angel di Maria’s failed spell in the Premier League as the Argentine proves that his class his permanent in Benfica colours. It’s telling, really, that Angel di Maria’s most memorable moment on the Old Trafford pitch arguably came while wearing the blue and white of Paris Saint-Germain, the winger mockingly drinking from an empty bottle chucked in his direction from the stands. Di Maria’s every touch was greeted by a chorus of jeers and boos during that Champions League meeting early on in the Ole Gunnar So…