The former Milan captain is widely regarded as one of the finest defenders in football history.

The Portuguese was sacked as United head coach in January.

He may have spent his 46th birthday at the match, but the head coach’s real focus was getting his first European campaign off to a winning start.

The 23-year-old Newcastle midfielder is currently serving a 10-month worldwide suspension.

The Magpies almost snatched a win late on through Sean Longstaff.