Pundit Garth Crooks has told BBC Sport that the main difference between Tottenham and Watford was Kieran Trippier's marauding runs forward.
After a strong run from Mousa Dembele, Dele Alli fed the ball across goal and there was Trippier, who stabbed the ball home from a matter of yards out.
It was the former Manchester City youngster's first goal for Tottenham since signing from Burnley over the summer, and he has made a real impression in recent weeks.
Trippier's emergence has pushed England international Kyle Walker down to the bench, and he certainly deserves his place in the side after an impressive display against Watford.
Now, pundit Garth Crooks has told BBC Sport that he felt Trippier was the biggest difference between the two teams at White Hart Lane; not so much because of the winning goal, but more because of his constant runs up the right hand side, which did ultimately lead to the goal.
"If you are going to score your first goal for your team, it might as well be the one that puts them second in the table," said Crooks. "There wasn't much to separate Spurs and Watford in this encounter apart from Kieran Trippier's penetrating runs down Tottenham's right flank. In fact it was Trippier's darting runs that in the end became Watford's undoing."
"The full-back looked desperate at times to get into the action and never looked fazed in the opposition's penalty area. His slide-rule finish was indicative of his measured performance," he added.
Few could have expected such an impact when Trippier signed from Burnley, as he was largely seen as backup for Walker - but now, he's becoming a surprise star under Pochettino, and will be hoping that his performance could help him make a late run towards England's Euro 2016 squad this summer.
What did you think of Trippier's performance?