Before the global break, United then earned a point at Southampton.
Leicester City are now third on the league table and apart from Man City and Liverpool, they are the only other side who are yet to taste defeat this season. "But they have not found a collective way", Wenger, who is reportedly set to join Federation Internationale de Football Association in a technical role, told Qatar-based broadcaster beIN Sports.
And now the hopes of the Foxes fans will go up even higher since Man United might be without a series of their first-team players. That's the question mark now.
With United still struggling to break out of a prolonged slump which began after the departure of the Scot in 2013, Solskjaer has elected to rejuvenate the squad by adding youth to his ranks, notably in the form of Daniel James and Aaron Wan-Bissaka.
"Will they emulate what (Ryan) Giggs, (Paul) Scholes, (David) Beckham did over a number of years?"
"He's very different but that's expected because he's played", he told BBC Sport.
"That's why I say when you watch them play they are not candidates to fight for the championship".
The Frenchman, who has been out of work since putting an end to his 22-year reign as Arsenal manager last year, consistently battled with Man United for Premier League titles in the early 2000s.