Mason Greenwood, part of Man Utd's squad v PSG, is expected back in school on Friday

Mason Greenwood could appear for Man United against PSG on Wednesday

There was a major comeback in the Champions League on Tuesday night as Ajax knocked out Real Madrid.

The Dutch club looked down and out having lost to their opponents 2-1 in Amsterdam.

But they overturned the deficit in style, shocking Real Madrid 4-1 at the Bernabeu.

Manchester United will be hoping they too can produce a comeback.

They travel to France to face Paris Saint-Germain after losing 2-0 at Old Trafford a few weeks ago.

However, unlike Ajax, they are far from full strength going into the game.

Paul Pogba, arguably Man United's most influential player, was sent off in the first leg and will not be available for selection.

Their squad is also ravaged by injury, with the likes of Anthony Martial, Jesse Lingard and Alexis Sanchez all missing the tie.

Ole Gunnar Solskjaer has been forced to include a number of youngsters in his travelling squad.

Among the players promoted from the youth team is Mason Greenwood.

Mason Greenwood has impress for Man United's youth teams this season

The 17-year-old has scored 22 goals in Man United's youth teams and could make his first team debut on Wednesday night.

But, while he could be playing in the Champions League on Wednesday, Greenwood is expected to be back in school on Friday.

The Times write: "Mason Greenwood, the 17-year-old United striker, is due back in class at Ashton on Mersey School on Friday.

"United have a partnership with the school, which allows their youngsters to carry on their studies as they train with the club’s academy."

Tahith Chong could also appear against PSG

What a reality check it will be for Greenwood, regardless of whether he features in France or not.

It does show the enormity of Man United's task, though, knowing they may have to call on a schoolboy as they look to make a comeback.

The likes of Tahith Chong, Brandon Williams, James Garner and Angel Gomes have also been called up from the youth teams.

But, despite their injury crisis, Solskjaer has insisted that the tie is not mission impossible.

Ole Gunnar Solskjaer may call on a few youth players to help defeat PSG

"Goals always change games. We've got to get the first goal and then anything can happen," Solskjaer said, per BBC Sport.

"Football is a technical and tactical game but it's also a mental game. If we get the first one we would start believing more and then they might start doubting themselves.

"It's never mission impossible. It's just more difficult.

"Everyone knows we can do it. In the Champions League in the last few years there have been so many examples of teams that can change results like this."

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