Chelsea easily progressed to the fourth round of the FA Cup, while QPR, Fulham and Brentford all face replays.
The Blues thrashed Southampton 5-1 in the third-round clash at St Mary’s, where new signing Demba Ba scored twice as they came from behind.
Jay Rodriguez put the Saints ahead before Ba levellled and Victor Moses put the visitors in front.
Branislav Ivanovic got the third and Ba scored again before Frank Lampard’s penalty capped a resounding win.
QPR drew 1-1 with West Brom courtesy of a last-gasp equaliser by Kieron Dyer at Loftus Road, where Shane Long had put Albion ahead.
Fulham also salvaged a 1-1 draw with a late leveller. They went behind against Championship side Blackpool at Craven Cottage, where Ludovic Sylvestre opened the scoring before Giorgos Karagounis’ 80th-minute volley.
Brentford, meanwhile, drew 2-2 at Southend.
Tom Adeyemi’s opener and Ryan Cresswell’s own goal put the Bees in a commanding position, but Barry Corr’s two headed goals means the teams will meet again at Griffin Park.