The Saints looked on course for an upset until two late goals turned the replay on its head
Tottenham manager Jose Mourinho has conceded his side were second best after claiming a narrow 3-2 win over Southampton in their fourth round FA Cup replay.
Despite playing at home on Wednesday, Spurs found themselves on the back foot at times as they enjoyed less possession and took fewer shots with Danny Ings ultimately putting the Saints 2-1 ahead in the 72nd minute.
Late strikes from Lucas Moura and Son Heung-Min would, however, seal Tottenham's spot in the next round against Norwich City.