Manchester United goalkeeper Ben Amos insists he is up to the challenge of facing Chelsea if required to.
Amos was thrust into the United starting line-up for Tuesday's win over Stoke after Anders Lindegaard and David de Gea were ruled out through injury and illness respectively.
21-year-old Amos kept a clean sheet against Stoke and he is ready to step up again at Stamford Bridge, live on Sky Sports 1 if Lindegaard or De Gea fail to recover in time for the trip to London.
"I have been waiting a long time for an opportunity this season and thankfully it has come," said Amos.
"I feel I am ready to play at this level and it has been kind of frustrating that these chances don't come around.
"But you have to be ready when something like that happens and you are thrown straight in and I like to think I made the most of it."
Although Amos did not have much to do against Stoke, the keeper was happy with how he performed at Old Trafford.
"In a sense I wanted more to do but then there is a temptation to go and chase things," added Amos.
"You see a lot of keepers with not much experience who try and make an impact, which there is no need to do. That is what I had in my head and I think I got that right.
"Obviously I wanted to be positive with any decisions.
"All I can do is keep a clean sheet and play the best I can when I get a chance.
"You have to do the best you can.
"It is the manager who makes the decisions and all I can do is put pressure on the other two any chance I get."