But it was not just Moyes who would be going up against his former team in Everton’s visit - but Marouane Fellaini as well.
The Belgian international finally left Everton this summer for £27 million but despite his previous good form in the Premier League whilst on Merseyside he has struggled to justify that price-tag since arriving at The Theatre of Dreams.
But with Phil Jones suspended and Michael Carrick injured the gangly midfielder was always likely to start the game this evening … and start he did.
Judging by the overall reaction on Twitter, United fans would rather he hadn’t.
Although there were some pockets of support for the player, with a few suggesting he was being made a scapegoat because he was an easy target, overall the vast majority of fans on the social network were in agreement - Fellaini is not good enough to play for Manchester United.
He certainly struggled to contain the swashbuckling Ross Barkley and James McCarthy this evening - and in fact he was lucky not to receive a red card for a foul on the man who effectively replaced him this summer. A high challenge around his groin left the Irishman needing treatment and Fellaini wondering how the card brandished was not red.
Statistically however the reaction from fans might be overzealous. He had an incredible 93% pass success rate and had 89 touches of the ball - more than any other player on the pitch.
But it appears to be his physical attributes that have come in for the most swathing criticism from United fans. He is not blessed with pace and today it showed against the dynamic midfield that Everton put out on to the field of play.
It is a tough one to call but he is certainly struggling to win over the United fans at this moment in time and as for Moyes - well the 5-0 win in Leverkusen now looks long forgotten.
Here is some of the reaction on Twitter...
Fellaini has to be one of Utd's worst ever buys. He gives them NOTHING, awful player. Mad how much we miss Carrick. Shocking performance— Laurence Kinlan (@laurencekinlan) December 4, 2013
Whoever said Fellaini was worth 27million is an absolute con man!— Cecil Nyoni (@CecilNyoni26) December 4, 2013
Never wanted Fellaini, still don't. Never wanted David Moyes, still don't.— Scott J Woodward (@SJW_MUFC) December 4, 2013
The lack of money spent in summer has ironically cost United in my opinion, Fellaini isn't a big signing. Weak midfield!— Hales. (@_JoshHales) December 4, 2013
Fellaini had a good game for a change... And Welbeck.. Well..— Kunal Gaikwad (@Cantonaesque) December 4, 2013
Fellaini should never play for Man United again. I hate him! :(— Machine Gun Kelly (@Yamani_Benzema) December 4, 2013
United really paying for the inertia in the summer with transfers and for delaying augmenting midfld, meaning ending up with Fellaini.— Joe Ashdown (@Joeash78) December 4, 2013
football can put me in the worst mood sometimes. fellaini is a worse signing than bebe and we rely on a 40 year old to run the middle— James Cracknell (@__Cracknell) December 4, 2013
Probably the best performance Fellaini has put in for Everton since March.— The Twelfth Man (@_The12thMan) December 4, 2013
image: © joncandy