Everton midfielder Marouane Fellaini has told Manchester United to expect a tough regime under new manager David Moyes when he takes over at the club.
Moyes, who visited United's Carrington training ground on Monday, does not officially succeed Sir Alex Ferguson until July 1.
Ferguson's 'hairdryer treatment' during his 27-year tenure at Old Trafford became renowned, but Fellaini, who worked under the future Red Devils boss for four years at Everton, believes Moyes can be just as strict with his players when he needs to be.
"He is a decent man, a great manager, but believe me he can be tough," he said. "If you want to win something, to create a good team you have to be hard sometimes with the players - football is like this. He can be scary," he told the Daily Mirror.
Fellaini was banned for three matches last season for headbutting Stoke's Ryan Shawcross, and the Belgium international says his on-field behaviour left him facing the wrath of the Toffees manager.
"I remember when I was banned after the Stoke game, he gave everyone the day off - everyone: The players, the entire staff - but I came to the training camp to do a training session with him," he said.
"It was just me and him, and it is not easy to go into the camp to face him like that. I understood, because I knew I had made a mistake, but you know it's not easy when you know you have let him down. Just going in there knowing you have to look him in the eye was hard!
"He put me through a tough session... it was a full-on session, running, shooting, passing, everything and very intense, and afterwards I was upset. I said afterwards, 'Arggh, this is bad', but I am happy when he looked after me, so I understand.''
Information from the Press Association was used in this report