De Gea would have be an eccentric genius who creates his own patented brand of milkshakes called De Gea Shakes.
Bailly would be the successful proprietor of a liquor store chain, ultimately squandering it all and never really knowing love.
Matic would be a TV star in his own sitcom called 'Matic and Friends' (or whatever that is Serbian) where he plays a quasi-version of himself in a series of increasingly bizarre scenarios.
Daniel James would work in Paperchase and tell everybody how amazing the pens because he obliged his boss's request to up-sell more often.
Martial would be be a crab fisher, fishing for crabs all day and all night with a giant grin on his face. He'd eventually go on to become a tour guide.
Harry Maguire would a wanderer, one day accidentally stumbling into an infinite void outside of space-time. He'd go on to emerge 54 years later but nobody would believe his story.
Rashford wouldn't exist. He was bred in a secret underground lab to play for United