Summary

  • Ndombele's shot deflects off Stephens for opener

  • Ings hits bar from close range for visitors, before Long levels

  • Ings bends home from just inside area after Redmond break but Moura levels

  • Son puts hosts back ahead from spot after being brought down

  • Ward-Prowse carried off on stretcher with serious-looking knee injury

  • The winners will entertain Norwich in the fifth round

  • Listen to BBC Radio 5 Live commentary from 19:45 GMT

Live Reporting

Emlyn Begley

  1. Spurs 3-2 Southampton

    Gedson Fernandes' 50-yard clearance drops into the arms of Angus Gunn.

    Gunn boots the ball forward and Fernandes wins a free-kick after a nice flick.

  2. Spurs 3-2 Southampton

    Can Southampton find one last chance? I'm not sure.

  3. Spurs 3-2 Southampton

    Saints get the ball into the box but the offside flag goes up. Time almost up.

  4. Spurs 3-2 Southampton

    Southampton don't look as if they have an equaliser in them.

  5. Get Involved

    #bbcfacup or text 81111 (UK only)

    Rachel T: Proper old cup tie this!

    Southampton's problem is they don't seem to want to see games out. They dominate, tear up defences and end up losing because of countless chances missed.

    Laurie, Cheam

  6. INJURY TIME

    Spurs 3-2 Southampton

    We're into injury time now.

  7. Lucas fires in equaliser from 18 yards

    Spurs 3-2 Southampton

  8. Spurs 3-2 Southampton

    Emma Hayes
    Chelsea Women manager on BBC Radio 5 Live

    What a cup tie! This has been a wonderful game to watch. I cannot believe Tottenham are winning this game 3-2 but a fabulously, well taken penalty from Son but the move that resulted in the penalty deserves huge credit. Wonderful pass in by Dele Alli. Think the home crowd can't believe what they've seen today.

  9. Spurs 3-2 Southampton

    Spurs try to find a fourth, it's a good move but Southampton stop Lucas Moura's pass reaching Gedson Fernandes.

  10. SUBSTITUTION

    Spurs 3-2 Southampton

    Spurs shoring things up now. Davinson Sanchez replaces Ryan Sessegnon.

  11. Spurs 3-2 Southampton

    How are Southampton losing this?!

  12. goal

    GOAL - Spurs 3-2 Southampton

    Son Heung-min

    Angus Gunn goes the right way but he still can't get his arm to Son Heung-min's penalty, which is right in the corner. And Spurs are close to the fifth round.

    FA Cup: Son scores penalty after being brought down by Gunn

  13. Spurs 2-2 Southampton

    But how much of a touch did Angus Gunn get on the forward? It doesn't seem to matter though because Son Heung-min is ready to take this.

  14. PENALTY TO SPURS

    Spurs 2-2 Southampton

    Spurs have a penalty. Dele Alli whips in a brilliant cross and Son Heung-min just dummies goalkeeper Angus Gunn, who brings him down. It's a penalty and Gunn is booked.

  15. Ings finishes after 50 yard Redmond run

    Spurs 2-2 Southampton

    FA Cup: Ings finishes after spectacular Redmond run

  16. Spurs 2-2 Southampton

    Emma Hayes
    Chelsea Women manager on BBC Radio 5 Live

    The game is tense but the crowd are playing a big part. The game has got easier for Tottenham since it's become more open. I think the more space that Winks in particular, has had inside of the pitch, has been better for Spurs because he can step in from midfield, spray the ball left and right. Moura dropping deeper instead of playing in the number nine has helped Spurs as well.

  17. YELLOW CARD

    Spurs 2-2 Southampton

    Southampton are really racking up the yellow cards here. Che Adams, only on the pitch a couple of minutes, barges down Serge Aurier.

  18. Spurs 2-2 Southampton

    Son Heung-min's corner and Toby Alderweireld heads over. Right now a Spurs winner seems more likely than a Southampton one.

  19. Spurs 2-2 Southampton

    Lucas Moura slides the ball through to Eric Dier, who lacks a striker's instinct and isn't ready for it. Wins a corner though.

  20. YELLOW CARD

    Spurs 2-2 Southampton

    Southampton need to be careful now. Oriel Romeu is booked for fouling Lucas Moura - his second foul in quick succession.