The Portuguese winger was a hit at Old Trafford and won the World Player of the Year award in 2008, but left the club for Real Madrid over the summer.
“I don’t consider I was ever in Ronaldo’s shadow but, no, I’m not happy he left the club and I don’t think any of us are,” Rooney said in The Sun.
“I’d prefer him to still be in the team if I’m being honest.
“He’s a brilliant player, irreplaceable, the best player in the world – so no-one’s happy he left.”