The Red Devils are looking to extend their winning run to six games in all competitions under interim Manchester United manager Ole Gunnar Solskjaer.
Manchester United haven’t put a foot wrong since the former Norwegian striker took over the reins from Jose Mourinho back in December.
The 20-time English champions have eased to victories over Cardiff City, Huddersfield Town, Bournemouth and Newcastle United in the Premier League.
Tottenham are 10 points ahead of Manchester United in the race to secure a top-four finish and Spurs are challenging Liverpool FC and Manchester City for the Premier League title.
Mauricio Pochettino’s side have scored 22 times in their last six games in all competitions to hit their goal-scoring stride heading into the second half of the season.
Tottenham were 3-0 winners against Manchester United when the two teams met at Old Trafford back in August to put Solskjaer’s predecessor Mourinho under immediate pressure.
Former Arsenal midfielder Merson is backing a resurgent Manchester United to secure at least a point in a 2-2 draw with Tottenham at Wembley on Sunday evening.
“If you’d have asked me two weeks ago I would have said United did not have a chance, not a chance,” Merson told Sky Sports.
“But having watched Spurs at Wembley against Chelsea and Wolves, United have every chance now. Spurs let a half-time lead slip against Wolves, didn’t have a shot on target in the second half and lost 3-1.
“Some put that down to tiredness but I’m not having any of that. Three days later they looked like the Harlem Globetrotters when they ripped Cardiff apart inside 20 minutes – they didn’t look knackered then, did they?”
Merson added: “Spurs have opened the door to United but I think both teams won’t be able to live with each other going forward.
“United are shockingly poor defensively, even the teams they’ve beaten recently looked like scoring every time they went forward. Sooner or later that catches up with you. I see Ole Gunnar Solskjaer’s winning start at United coming to an end but a great result for him at Wembley.”
Manchester United haven’t won the Premier League crown since 2013 and are well off the pace in this season’s title race.
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