Evans believes the 29-year-old is capable of changing a game every time he plays.
“Every time Michael comes on he gets into really good positions,” said Evans.
“He changed the game a bit for us on Sunday. It was the first time we really looked like getting in behind Liverpool.
“It was good for him against Barnsley to get another goal. It was a great finish from him. He made it look easy by passing the ball into the corner.”
Owen joined United on a free transfer from Newcastle United in the summer.