Sir Alex Ferguson was shocked by the manner of Manchester United's Carling Cup exit to West Ham at Upton Park on Tuesday night.
The holders crashed to their worst defeat since 2001 when they were thrashed 4-0 by the Hammers, a first loss of the season that ended their 29-match unbeaten run.
Jonathan Spector and Carlton Cole struck two goals each amid a snow storm in east London that failed to dampen the Hammers' determination to reach the semi-finals.
