Man Utd hasn't improved yet if judging by their yesterday match against Bayern Munich was used as a reference that is absolutely untrue, Onana made some brilliant saves in that match if not Man Utd would have lost the match with more goals, though Onana after the match admitted that his error was responsible for the team defeat, even with the narrow defeat I think Bayern Munich were not in their best, however Onana hasn't made any difference since arrived from Inter Milan he was sole responsible for sending off DeGea on a free transfer because of his ability initiate a buildup from the defense yet he had never achieve a clean sheet in all matches he played for Man Utd.
For the first time since 89 (if I remember correctly the news I read this morning), United lost three games in a row, conceding more than 2+ goals in each. Obviously they are playing poorly and the goalkeeper is not even close to De Gea's level yet.
As for Bayern, what irritates me is how easily they concede goals when they are leading, this lasted all of last season and so far there has been no improvement. Yesterday Bayern had a margin of safety and they should have scored more goals. A close score should not mislead anyone.