Former Uruguay midfielder Gus Poyet is backing Edinson Cavani for success with Manchester United.
Cavani struck his first goal for United in last week's win at Everton.
Poyet told the Daily Mail: "I think he is going to be more important for Manchester United than people think.
"Look at the last game at Everton. The result was in the balance, he came off the bench, once chance and bang.
"English football is perfect for Uruguayans because we are passionate. Once we sign a contract, we forget about it because the only thing that matters next is winning. English fans love that."
Cavani has been world-class for PSG and at World Cups.
"He makes an incredible amount of runs," says Poyet.
"Maybe he makes an unbelievable run and the ball isn't played. The fitter he gets, the more he understands United's play, the more he will play."