Everton head to Old Trafford on Sunday on the back of a wretched run of form and have not scored in their last three games in all competitions.
"He'll get a great reception from the United fans because he was such a great player for United in such a successful era as well".
Mourinho went on to declare he was happy with the squad he has assembled at United and he believes the relationship between the club's supporters and their team has changed for the better. "He's a legend, he deserves to be welcomed that way but during the match he's an Everton player".
Much like Jose Mourinho today, money was spent addressing apparent weaknesses in the ranks. Manchester United should won rather comfortably, and are likely to score the first goal of the game as well. He powered in the opening goal with a close-range header as well as setting up Marcus Rashford to round off the scoring during the closing stages of the match.
A 94th minute Zlatan Ibrahimovic penalty rescued a point for Man United last season as Koeman maintained his undefeated record against "The Special One" following a 1-1 draw at Goodison Park earlier in the campaign.
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Having made some impressive summer signings, Everton tiptoed their way through some tricky Europa League qualifiers, and took four points from Premier League games against Stoke and Manchester City.
Everton have struggled without him so far but Lukaku said he would be focused only on getting another win.
"I will have a meeting with most of the players, with the key players", Koeman said.
At least new signing Gylfi Sigurdsson might be able to land a glove on United - Opta tell us the playmaker's been involved in six goals in his last six games against the Red Devils.