In pictures: Spurs' saviour Son wins FA Cup match and fans' hearts with kind gesture

Son Heung-min capped a spirited Tottenham fightback as the South Korean's late penalty secured a dramatic 3-2 win against Southampton in Wednesday's FA Cup fourth-round replay. Tottenham, who last won the FA Cup in 1991, will host struggling Norwich in the fifth round in the first week of March.

The fans were out in force for Son, with one group asking for their hero's shirt

Jose Mourinho's side were 12 minutes away from being knocked out, and the coach, who replaced Mauricio Pochettino earlier this season, will be relieved Tottenham avoided a surprise exit from a competition he has not won since 2007 with Chelsea.

Tottenham are without a major trophy of any kind since the 2008 League Cup and Mourinho would dearly love to end that drought, but his team will have to improve significantly on this erratic display.

Tottenham took the lead fortuitously after Tanguy Ndombele's off-target shot was diverted into his own net by Southampton defender Jack Stephens in the 12th minute.

Danny Ings hit the crossbar for Southampton before the visitors did manage to level in the 34th. Nathan Redmond found space in Spurs' penalty area to send in a low shot that goalkeeper Hugo Lloris could only parry into the path of Shane Long, who knocked in the rebound.

Southampton took the lead in the 72nd following a superb break by Redmond. The winger skipped past two Tottenham defenders before knocking it past a third to run clear into the home side's half. He slid a pass into Ings, who cut inside Japhet Tanganga and curled into the bottom corner

The lead lasted just five minutes, though, thanks to Lucas Moura's strike. The Brazilian weaved his way towards the edge of the penalty area, played a one-two with Dele Alli, and fired into the bottom corner.

Mourinho will have to get Jan Vertonghen back onside after the defender's dejected trudge off the pitch following his substitution. "I understand his sadness, it is normal. He is always respectful and always professional. It doesn't make me happy to make a substitution. I did it for the team," Mourinho said.

Son was the hero as he won and converted the decisive penalty with just two minutes left. "I have to be honest and say I think the best team lost on the pitch but my team were the ones with more heart and went to their limit," Mourinho said.

Son wasn't done yet as he found the fans who held up his banner and duly obliged by giving them his shirt. What a gent.