Paul Merson has told Ole Gunnar Solskjaer to start Marcus Rashford on the substitutes bench against Arsenal.
The striker netted a hat-trick against RB Leipzig off the bench in the Champions League for Manchester United in midweek.
He is expected to start against the Gunners but, writing in the Star, Merson said he doesn't believe that should not be the case.
Merson wrote: "Marcus Rashford is the perfect supersub and should start on the bench for Manchester United this weekend.
"Ole Gunnar Solskjaer should use him more often like that because the stats show that’s where he can sometimes be most dangerous.
"When he starts, he doesn’t really score bundles of goals and often finds it difficult. But he came on this week against Leipzig and scored a hat-trick in 16 minutes! If you look at when he scores his goals this season, they tell you a story.
"He scored with three minutes to go against Paris St-Germain and all his goals against Leipzig were at the end of the game.
"His goals are coming against tired defenders. Maybe United should experiment with that.
"Arsenal is going to be a tight game. If it’s 0-0 after 60 minutes and Rashford comes on just when defenders are getting tired, he could have a field day."
Merson believes Rashford coming off the bench would be a useful boost to a United side lacking strength in depth.
He said: "Don’t get me wrong. Marcus Rashford is too good to spend his whole career as a supersub. He’s an England international.
"But I think he needs a rest and playing a few games off the bench might actually do him some good in the long run.
"The rest of United’s bench is not changing a game for Solskjaer. But Rashford can. And there’s no better feeling as a manager than having a weapon like that to bring on.
"Rashford is a better player when the game opens up and there’s space to burst into. But United can’t open games up from the start because they’re not good enough defensively.
"You’ve got to have players who will tire out defenders so that when Rashford comes on those defenders will be on their knees. Anthony Martial can do that. So could Mason Greenwood."
