Arsenal outgoing manager, Arsene Wenger, is unsure of the welcome he will receive on his final visit to Old Trafford as Arsenal boss on Sunday after many “great battles” against Manchester United during his two decades in charge.

The 68-year-old Frenchman, leaving the club at the end of the season, will bring a side that is a pale shadow of the team that challenged United’s Premier League dominance during his first decade in charge.

Wenger’s clashes with former United boss Alex Ferguson are the stuff of legend and his relationship with current Manchester United manager Jose Mourinho has been laced with bitterness.

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But both men have reached out to him with warm words since he announced he was stepping down.

Mourinho said he regreted some of the “little negative episodes” between himself and Wenger over the years, calling on United fans to give him a fitting send-off.

When asked whether he could be friends with Mourinho, Wenger spoke instead of “respect” for the current United boss.

Arsenal, in sixth spot in the league, look certain to miss out on the top four for the second year in a row.

But Wenger will still believe he can leave the club with a trophy and a Champions League spot despite conceding a late goal in a 1-1 home draw with Atletico Madrid in the Europa League on Thursday.