The midfielder joined United with the aim of challenging himself within a bigger set-up. It's certainly been a challenge, he feels.
"It was great to win the title with United and to make it three in a row for me personally," he tells the latest issue of Inside United. "But I feel I still have work to do. I would say I am half satisfied and half unsatisfied.
"I want to be a better player year by year. I expect a lot of myself. I hope to show my dynamism, style and presence more."