Son Heung-Min's late penalty gave Tottenham Hotspur an entertaining 3-2 win over Southampton to reach the fifth round of the FA Cup.
The South Korean star's goal from the spot in the 88th helped seal the replay win at Tottenham Stadium that saw the hosts rally after initially taking an early lead.
It was a tough result for Southampton who deserved more, according to Tottenham manager Jose Mourinho.
"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," said the Portuguese, whose one FA Cup triumph came with Chelsea in 2007.
"So many difficulties to even build a team, the options were not options to change the game. My team too deserved to win -- but the best team lost."
Southampton nearly levelled seven minutes later but Danny Ings' shot to the top of the goal bounced off the crossbar.
Ings then helped the visitors take the lead with clean finish at the end of a rapid break in the 72nd minute, but Lucas Moura put Spurs back into it six minutes later with a superb strike.
Son then drew the winner when Dele Alli set up him for a run into the box, forcing goalkeeper Angus Gunn to make just enough contact for the foul. A short VAR check confirmed the penalty and Son coolly dispatched the spot kick.
The winners now take on fellow Premier League counterparts Norwich City in the next round of the tournament.