#3 Giovani Lo Celso makes an instant impact
Giovani Lo Celso scored his first Premier League goal memorably. He found the back of the net with his first touch of the game and doubled Tottenham Hotspur's lead after being on the pitch for just 35 seconds.
He impressed for Argentina during the international break, where he made a similar impact as a substitute in their game against Paraguay. He picked up the assist for Nico Gonzalez's equalizer in that game and tonight had an even bigger impact.
Lo Celso replaced Ndombele, whose assist led to Son's goal but energy dipped gradually as the game progressed. Lo Celso's introduction proved to be a stroke of genius from Mourinho, who enjoyed the goal a little too much on the sidelines.
#2 Manchester City's worst start to a Premier League campaign since 2008
Manchester City's loss at the Tottenham Hotspur Stadium was their third of the season, which kept them in the bottom half of the table for at least another week. Statistically, this has been City's worst start to a Premier League campaign since their takeover by Abu Dhabi United Group in 2008.
City's numbers have been disappointing this season. They have a negative goal difference, having scored 10 goals and conceding 11 times. Injuries to key players like Fernandinho, Aymeric Laporte and, most importantly, Sergio Aguero have been partly responsible for their mediocre campaign thus far.
Coincidentally, this has also been the worst start to a season for manager Pep Guardiola across all the clubs he's managed in his glittering career. He will have to roll up his sleeves to get City's season back on track.
#1 Tottenham Hotspur's discipline, grit and accuracy helps them secure a memorable win
Tottenham Hotspur put on a show and got the better of Manchester City in most aspects of the game on Saturday.
Spurs played the entire game as if they had drilled for hours and hours in preparation for everything that City could throw at them.
Their clinical display was even more impressive given that most of the players in Mourinho's squad just had a couple of days to prepare for the fixture, after returning from a long international break.
The hosts stuck to their formation religiously. They showed restraint going forward, did not commit themselves into challenges, the defenders made at least a dozen wonderfully timed tackles, and last but not the least, they were deadly on the counter.
Have they done enough to stake an early claim for the Premier League trophy this season? You be the judge.