The World Cup's all-time leading goalscorer will be guest of honour at the Emirates today for Scotland's friendly against Scotland.
Ronaldo piled on the pounds as he battled mental problems and injuries but Morrison joked: "Maybe I'll even get to have a burger with him!".
"Seriously, as a little kid I remember watching them and aspiring to be like them. My earliest real memory is the 98 World Cup in France, the team with Ronaldo - that was the one for me.
"He's been such a great player, it would be fantastic to see him. He's the leading scorer of all time in World Cup finals and you can't take that away."