Patrice Evra has sounded a note of caution as United’s talented young players prepare to stake another claim for regular first-team action.
The likes of Ezekiel Fryers, Paul Pogba and Michael Keane featured against Leeds and Aldershot in the previous rounds of the Carling Cup and will be hoping to be involved tonight against Crystal Palace.
Whichever youngsters are picked, Evra wants them to make the most of their opportunity to impress Sir Alex Ferguson – and take nothing for granted.
The Frenchman said: "This is a big chance for them, but they have to be careful because Sir Alex gives you an opportunity and if you let him down, it’s difficult to get another one.
"This is the United way: if you play well, you’ll get another chance, but if you play only an average game, the boss will put you on the bench. There’s always someone ready to come in and try to do better than you.
"That’s why players must be ready to grasp the chance. Before the game they must think to themselves how lucky they are to be playing with the first team already."
Evra has nevertheless been impressed by what he has seen so far.
"I’m really proud and pleased because when you see these young players in action, you know United’s future is bright," he said.
"They’re doing a great job and Sir Alex deserves a lot of credit for that – he’s not afraid to play them in the Carling Cup."