Rooney's remark comes after Ronaldo slammed him for criticizing his second comeback to Manchester United, calling him "jealous."
Rooney took aim at Ronaldo's return to United during his appearance on Monday Night Football this week, suggesting that the 37-year-old does not provide enough while he's on the pitch.
In reaction to his old United teammate's Instagram post, Ronaldo commented, "two jealous."
However, Wayne clearified it as he admits:
"I actually watched that this morning and I'd probably argue that there's probably not a football player on the earth who isn't jealous of Cristiano," Rooney said when questioned about Ronaldo's remark on Thursday.
"His career, the trophies he's won, the money he's made, his six-pack, and his physique."
"I believe that every player, with the exception of Lionel Messi, is envious of Cristiano."