Rome, Italy (My Sportsbook) - Barcelona's former Manchester United defender Gerard Pique has warned that Wayne Rooney is "unstoppable" when he hits top form.

Center back Pique is preparing to face his former colleague in the Champions League final in Rome and is ready for a tough task on Wednesday evening.

He admitted: "When he is focused he is simply unstoppable.

"I have never seen a player as powerful as Rooney - the way he goes past people, the intensity of his play, the runs he makes from the first minute to last and the shot that he has. World-class.

"Perhaps he does not get the credit he deserves because he should score more goals, but he offers so much."

Meanwhile, Pique's Barca teammate Lionel Messi has admitted that he would pay to watch Red Devils ace Cristiano Ronaldo.

"Manchester United have quality everywhere," he told the Daily Mail. "So many good players, but if I had to pick one out it would be Ronaldo. He is a player I would pay to watch.

"He and I are very different players, but he is unbelievable, very special and it will not be easy to stop him.

"But we must not pay all attention to him and forget about Berbatov, Rooney and Carlos Tevez. Manchester United have players all over the pitch who can punish you in the same way we have."

(Courtesy of sportbox.tv)