United managed a 1-1 draw at home against the Spanish side on Tuesday, something that saw the Red Devils finish top of Group C.
He told Sky Sports: “We knew what we had to do here and that was get the result to make sure we finished top of the group, and I thought Valencia probably scored against the run of play.
“In the second half we were on top, got the equaliser and then it was always going to be a nervous last 10 minutes because they’re pushing for a goal and we want to hold on to make sure we finish top of the group, so I thought we’d done that well.”
Rooney has admitted that he feels good fitness-wise at the moment.
“Maybe just in and around the box I need to get that sharpness back in front of goal but overall I am happy with my fitness and happy with my performance today,” he admitted.