He said: "We took off Robin for precautionary measures. It doesn't seem to be too serious, but you never know. We didn't want to take any risks." Another injury worry for Manchester United is fellow new-boy Shinji Kagawa who missed Japan's 1-0 victory over Iraq with a back injury.
"I felt a twinge in the back during practice when I was on the ball. I had some treatment but didn't want to risk causing the team trouble by playing," said the midfielder. "Obviously it's a shame I wasn't able to play. It's not that serious and I don't think it will keep me out for long."