Manchester United great Wayne Rooney says Cristiano Ronaldo should be dropped for tomorrow's clash with Liverpool.

Rooney has urged Red Devils boss Erik ten Hag to get energy on the pitch, which would mean leaving out the 37-year-old Ronaldo.

He wrote for The Times: "I wouldn't play Cristiano Ronaldo, and I wouldn't play Marcus Rashford.

"If I was in Ten Hag's position my main concern would be getting energy on the pitch, and United's failure to recruit a number nine means they relied on Ronaldo against Brentford, even though he hadn't trained a lot with the team.

"He looked like he needs time to get match fit. ten Hag needs energy from his side and that may mean dropping Ronaldo.

"Football has developed tactically and improved technically during my time in the game, but the basics don't change.

"If you don't run, if you don't put in the effort, you can lose to any team. I have never seen Manchester United so lacking in those basic qualities. Their hammering by Brentford was hard to watch."