A point would be enough for Roy Hodgson's men to secure a quarter-final berth.
However Rooney sees no reason to adopt a negative attitude.
"I've said it before. I think we're good enough," he said.
"I know no-one wants to build up expectations but I firmly believe we've got the players. Before the tournament started I said a country like ours needs to be in there with a shout of winning major tournaments. Obviously you need a bit of luck as well, but we've got a good opportunity. We've got the squad and are more organised than we have been as long as I've been in the squad.
"We are hard to beat now. If we keep doing that and keep working hard then there's no reason we can't go really far and be in with a shout of winning it."