By Sean Walsh Joshua Zirkzee is closing in on a move to Manchester United, and if all goes to plan, he’ll soon be holding a loft one of those famous red shirts. But the next question will be: what number is on that shirt? What number can Zirkzee take? Here are the options on offer to Zirkzee, his shirt history and more. Joshua Zirkzee shirt number historyPull up a chair, we have some archives to dig through. If Zirkzee tells you he has a favourite number to wear, it would be fair to cast some doubt at that given how often he has changed his own over the years. When breaking through the upper e…