Cleverley saw action in the friendly win over Hannover.
He told MUTV: "I've been away for a few weeks now but to come back into a good game in a good stadium and be playing with the world class players we've got only helps your game, so it's good to be back.
"I think the Olympics has been good for me. I've got six games under my belt including the two friendlies so I feel one hundred percent. I'm happy and looking forward to the season."