He said: "Regardless of what other signings come in or who plays where, you have to back yourself to be a Man United player. That's one thing that I've done over the last two years, I've always backed myself.
"I've tried to train hard and I've always wanted to do extra things to try to give me that one percent difference.
"The main thing for me is to be ready. Mentally, physically, everything. I need to be ready whenever I'm needed and when I'm asked."