Jonathan Spector and Carlton Cole both scored twice as West Ham thrashed reigning champion Manchester United 4-0 to reach the semifinals of the League Cup on Tuesday.

Arsenal reached the last four ousting Wigan 2-0 in another quarterfinal.

Manchester United, which are leading the Premier League, pitched a squad made of largely of reserves at Upton Park.

United States defender Jonathan Spector, who used to play for United, scored a first-half brace before Cole added two more after the break for West Ham, which is bottom of England's top division.

Arsenal, the favorite for the competition, saw off Wigan with an Antolin Alcaraz own goal and Nicklas Bendtner's close-range finish.