Mexican substitute Javier Hernandez scored a late winner to send holders Manchester United into the English League Cup football quarter-finals with a 3-2 victory over Wolverhampton Wanderers at Old Trafford.
After a goalless first half, the visitors twice came back from a goal down against a youthful United side before "Little Pea" Hernandez skipped past defenders to settle the tie in the 90th minute.
Premier League Birmingham needed a 4-3 penalty shootout win to get past third division Brentford.
West Bromwich Albion scored a 4-1 victory at former England manager Sven Goran Eriksson's second division side Leicester City.
Wigan Athletic beat second division Swansea City 2-nil.
The run of fourth division Northampton Town, who knocked out Liverpool at Anfield on penalties, ended at second division Ipswich Town where they lost 3-1.