Alexis Sanchez who has taken a while to settle in at Manchester United after his January move from Arsenal as he has shown he can be Red Devils main man for the big occasion.
Before this game, the 29-year-old had scored just two goals in 13 appearances, Sanchez hauled his team back into the game with a stunning header from a beautiful Pogba cross just 13 minutes later.
It extended the Chilean’s incredible record at Wembley to eight goals in eight games at the stadium, and five in five FA Cup ties here, but his performance was about much more than the equaliser.
Eyebrows were raised when Mourinho ignored the pace of Anthony Martial and Marcus Rashford in his starting line-up – but he was rewarded with the industry of Jesse Lingard, Romelu Lukaku and Sanchez – with the latter delivering a man-of-the-match performance.
Herrera’s strike and Alexis Sanchez’s first-half header consigned Tottenham to an eighth successive defeat at this stage of the cup.
It left Spurs suffering more FA Cup semi-final pain and with a losing sequence stretching back to their win in the last four against Arsenal here in 1991 – and Pochettino still without a trophy after four seasons at the club.
Spurs dominated until Sanchez levelled the scores on 24 minutes, but from that point onwards, there was only going to be one winner and that was United.
Mourinho’s men still have to finish the job against either Chelsea or Southampton in the final next month, but FA Cup glory is now within touching distance for United.
And a win at Wembley in the final would turn a disappointing season into a successful one and maintain Mourinho’s record of delivering major trophies.
United are now preparing to face either Chelsea or Southampton in next month’s FA Cup final on 19 May.