Brighton have also enjoyed a successful restart, with Neal Maupay playing hero and villain - scoring the victor against Arsenal and missing a penalty against Leicester - as the Seagulls have taken four points from their two games.
The Red Devils have been in stellar form since the resumption of the season and next up they take on Brighton and Hove Albion, away from home.
The Reds were the first team to qualify for the semis following their hard-fought 2-1 win over Norwich City on Saturday, with the Blues joining them on Sunday courtesy of a 1-0 win over Leceister. The Spaniard replaces Sergio Romero between the sticks.
Solskjaer is "very happy" with how Maguire is progressing, but thinks there is still much more to come from a player who thrives on regular playing time.
"Sheffield United he did miss, yeah, one or two chances, but the goals he created I think that is what we are focusing on and I think Marcus is on his way to his best season ever at Man United".
"We've always got to look at improving".
"I said it when we played Leicester last season it's like he has a magnet on his head with the ball and we're now getting used to him and his movement, with Bruno [Fernandes] coming up with some good deliveries". As he can not afford any more rookie mistakes in the league he will be looking forward to playing his best XI. "And we know when Harry is in there then anything can happen".
United are looking to continue a 14-match unbeaten run, and get all three points, to keep up the pressure on Chelsea and Leicester.