The Arsenal man recently returned to first team training.
The Arsenal midfielder has missed the entirety of this season through injury but is now back in training.
He is targeting a place in England’s squad for Euro 2016 in France this summer, with many believing Roy Hodgson will call on him if he proves his fitness.
Should he be called up, there would have to be someone to drop out of the squad to make room for him.
And Merson believes one from the trio of Everton, Arsenal or Manchester City stars could be the person that makes way.
“Watching the game against Holland, if Wilshere can play a few games, he’s a must,” he told Soccer Saturday.
“He is different to what we’ve got. I would take him, and only because of what I saw against Holland. He doesn’t have to start.”
“Who’s place does he take? My biggest worry is Theo Walcott, Raheem Sterling and Ross Barkley; I think one of those three will miss out for Wilshere.”
Wilshere’s potential inclusion in the squad for this summer’s tournament certainly seems to be a question that will linger right until Hodgson names his selection.
Of the three Merson names, it would surely be Walcott who would be the most likely to miss out given the disappointing season he has endured.
Barkley and Sterling have hardly had stellar campaigns either though and must prove themselves between now and the end of the season to ensure their places.