He started a Carabao Cup defeat to Colchester United back in September 2019 under former boss Mauricio Pochettino, before Mourinho handed him his Premier League debut against Burnley in December. They wanted the serial victor to guide them to silverware which, despite Pochettino's excellence, has consistently eluded them.
Lucas Moura struck to bring the home team level before a Son Heung-min penalty booked a clash with Norwich City in the last 16.
Yet Spurs found a way to dig deeper.
"To play under a coach like Mourinho is very tactical".
The manager also said that he had not yet been able to tell the Kenyan captain because he had been ill although he will undoubtedly now have heard through the media.
"We have had a lot of ups and downs but we can finish the season strongly and that is the best way to prepare for the next one". They pressed, they had intensity, they had chances.
A clip of Mourinho running to confront the fourth official after a video assistant referee (VAR) decision in Spurs' 2-0 win over Manchester City on Sunday has gone viral on social media, and the Portuguese said emotion got the best of him.
"My players were phenomenal". The way they react was fantastic.
"The players [played with their] souls, and heart and gave absolutely everything". Manager José Mourinho has already admitted that he is too young to be seen as a viable option to replace the injured Harry Kane, so a loan move may be best.
"Dele could suffer pain and could cope with that tonight".
But Lucas equalised before Son won and converted the decisive penalty with just two minutes left.
"To win the FA Cup is likewise extremely, extremely challenging, you have all the leading challengers in competitors, you have all the excellent groups with desires like Southampton, like Sheffield United, these groups with the desire to eliminate for it as well, it's extremely challenging".
Mourinho will be relieved Tottenham avoided a surprise exit from a competition he has not won since 2007 with Chelsea.
He said: "I had to manage this chess game without pieces".
"The priority is to survive".
"Today was a team completely unbalanced, really hard to organise it".