Wilshere saw his own progress last season hampered by a series of niggling injuries, but fees the ankle is now "100 per cent" as he prepares for Arsenal's tour to Asia.
"I am really looking forward to having a solid pre-season. I haven't had one in two years and once you miss it, you are always playing catch-up," he said.
"It's a chance to show the manager that you deserve to be in the team and I think there's going to be competition for a few spots, but that's a good thing.
"If you're going to challenge for trophies, you need a big squad. You can't expect 11 players to do it every week."