Going into the game, Man Utd had the stronger team on paper – but it’s AC Milan who have had the better game so far.
The visitors have seen two goals disallowed inside the opening 45.
Leao latched onto a long ball and finished well past Henderson, but the linesman flagged the forward for offside.
Kessie thought he handed AC Milan the lead too.
The midfielder was picked out from a throw-in, he took one touch and fired a volley into the far corner – only for VAR to intervene and rule the goal out for a handball in the build-up.
Man Utd’s best chance of the half came through Maguire.
The United captain met Fernandes’ flick-on at the far post, but saw his effort from one yard out hit the post.
Maguire got a touch on the ball from one yard out, but it hit the post and Milan cleared.