Shane Long on the mark for Southampton
Heung Min Son scored a late penalty to send Spurs into the fifth round of the FA Cup last night .
But Jose Mourinho's side were made to work for the win against Southamtpon - it finished 3-2 at the new White Hart Lane.
Shane Long scored the first goal for the Saints and Danny Ings gave the away side a 2-1 lead with 20 minutes to play.
Lucas Moura levelled things up 12 minutes from time and then Son won a penalty four minutes from time - he made no mistake from the spot to set up a fifth round meeting with Norwich City.