Butt is expecting a flurry of text messages from his old United pals.
Ryan Giggs got in touch following last season's stalemate.
And Butt said: "I'm sure the texts will come flying in but their destiny is still in their own hands.
"There is always an incentive to get a result, especially when we're at home.
"But when you're up against one of the big teams you definitely want to show you can compete with them.
"I've got a lot of friends at United, so it would be an added bonus if I could do it for them as well."