I'm not sure I can recall ever seeing a player improve as quickly and dramatically as Dalot, when comparing his performances over the last few games to how he'd been last season and the first couple of games of this season.
Prior to these last few games, in recent months he'd for most part barely looked a footballer worthy of the top division of English football. He couldn't get near opposition attackers and was limited on the ball. Suddenly he looks rapid, is blocking most of the crosses he should, and is playing with confidence and flair.
A new RB seemed essential in the summer, but for the first time in a few seasons he seems near to the kind of player that persuaded Mourinho to sign him, before injuries and the poor structure at Utd in large part derailed his development.