A rare win at Old Trafford continued Tottenham Hotspur's perfect Premier League start on Monday.
Harry Kane opened the scoring and Lucas Moura added two goals as Spurs beat Manchester United 3-0 for their third straight win.
It was just the third victory in 27 league visits to Old Trafford for Tottenham, who had lost the last four without scoring.
"That's massive," Kane told Sky Sports. "To come here and win is a big statement, three wins out of three is a great start.
"We haven't started well in previous seasons and had to play catch-up.
"This will give us huge belief."
The win lifts Spurs to second behind Liverpool and ahead of Chelsea and Watford, with all on the maximum nine points.
United drop to 13th place after their second straight defeat, one which will likely pile more pressure on manager Jose Mourinho.
"We worked very well during the week," Mourinho said. "We prepared very well, the players had a fantastic attitude.
"At half-time the result should be 2-0 or 2-1 or 3-0 and then something changed the game a little bit and then it was 2-0 [to Tottenham].
"Everyone could feel that one goal could change the direction of the game. But then the third goal killed the game."
United's Romelu Lukaku wasted the best chance of the first half when he fired wide of a gaping goal after picking up a loose back-pass and rounding keeper Hugo Lloris.
Tottenham had a penalty shout denied when Moura appeared to be barged over by Phil Jones and United came up empty with several more chances before the break.
Kane then opened the scoring with a header in the 50th minute for Spurs' first goal at Old Trafford since New Year's Day 2014.
And the visitors wasted little time in adding another as Moura slotted home Christian Eriksen's cross two minutes later.
Moura then punctuated the dominant victory by running by defender Chris Smalling to beat David de Gea in the 84th minute.
"We're trying to create our own history," Kane said. "We've got the hunger and the desire to take the club to the next level.
"For us, it's about building what we've been doing for the last four or five years now.
"We've got so much belief in each other."