Manchester United striker Wayne Rooney describes wrath of manager Sir Alex Ferguson

Wayne Rooney says feeling the full force of Sir Alex Ferguson's rage is 'horrible', but has admitted he sometimes shouts back.

Rooney says some players struggle to recover from a blast of Ferguson's anger and their confidence remains shattered. "It spurs some of the lads on, but it crushes others," he explained. "I've seen the manager shout and scream at people and when they've gone back on the pitch their heads have dropped. They've lost it." Rooney recalls that Louis Saha was subjected to one of Ferguson's most explosive rants following a 1-0 loss to Celtic in a UEFA Champions League game in 2006, while he got caught in the crossfire. "It's the worst 'hairdryer' I've seen," said Rooney. "He's in Louis' face, shouting and screaming. "But Louis isn't the only one getting an earful. "The manager knows I've been negotiating a new deal with the club and he saves some for me, 'Players wanting more money from the club and new deals - you don't deserve anything after that performance!'"