On Wednesday evening, David Moyes will welcome his old club Everton to Old Trafford for the first time since he took over from Sir Alex Ferguson as Manchester United manager.
Moyes spent 11 years at Goodison Park, steering the Toffees into the Champions League qualification rounds and developing a reputation as one of the most impressive managers in the Premier League. In the build-up to Wednesday's game, Moyes' successor at Everton paid tribute to his impact, but urged for attention to be on the pitch rather than the Manchester United dugout.
"I think David Moyes did a fantastic job over the last 11 years and that is what I want to keep going here," said Roberto Martinez. "I know that from the outside this is an attractive proposition to speak about the managers. But football is not about managers, it is about the players and the institutions and two football clubs with incredible tradition facing each other.
"We must pay huge respect to the champions - you don't win this league unless you have something special - and we will have to be at our best to compete, but we have to be ourselves."
United have been inconsistent under Moyes so far this season, with back-to-back 2-2 draws against Cardiff and Tottenham Hotspur halting their surge up the table following a stretch of four wins in five matches.
Speaking after the draw at White Hart Lane, the Manchester United manager revealed he is worried by the nine-point gap between his team and league leaders Arsenal, but is confident of getting closer to the top of the table over the coming months.
"We are concerned that we are not as close as we would like to be, but it is a long season and I do think we have got room to get better and progress, that is without a doubt," he said. "Hopefully we will be there or thereabouts. There are a lot of games coming up in the next eight weeks and we hope to be in the mix at the end of that period.
"This (Tottenham away) was always going to be a tough game in the fixture list and I think if you had said where have we let ourselves down then you'd have to say the 89th minute at Cardiff as much as anything. But we now have a week that sees us with two home matches. We have had three away on the bounce and won in the Champions League and picked up two draws. It is not ideal but not the worst."
Everton go into Wednesday's game two points and four places above Manchester United, having enjoyed an excellent start to the season under their new manager. A 4-0 win over Stoke at the weekend helped boost the Toffees up to 21 goals scored - sixth-highest in the league - and they will be confident of containing United, having conceded just seven goals in six away games.
United may be able to call upon Robin van Persie (groin) and Michael Carrick (calf) after both missed the Tottenham match on Sunday. Everton are expecting to be without Leighton Baines (ankle), Arouna Kone (knee) and Darron Gibson (knee).
David Moyes never won at Old Trafford as Everton manager, but did manage two wins and two draws against United in the last seven meetings between the clubs.