he won't be alone vs them, after all and it's not like a 35 old Nesta, who's as slow as molasses these days, had the speed and still locked down Messi's ass at the Camp Nou. With top defenders it's about reading the game, anticipation, positioning first and foremost ... if you know how to that well, you won't have to chase after your man as much
Stam would have eaten CR7 alive, imo, as for that shifty little shit Messi, it would depend on whether Xavi and Iniesta are playing too - if yes, then Stam would need some help from the other CB, if not - then he could just take a 90 min vacation