Obertan is winning praise for his first appearances with United, but insists he's not satisfied.
He said: "I do want to do more and I have not scored yet or made an assist.
"I don't think I am fully match fit yet. I worked hard for four months so I think I will be 100 per cent soon and that will help me.
"I think I have put in some good performances but they've only been short appearances when I came on as a substitute. I want to do more than that. I think I could do more. That's what I am wishing for."