However, Spurs were thankful to several saves from goalkeeper Hugo Lloris, and Pochettino has called for improvements after the international break.
The Argentine is quoted by BBC Sport as saying: "We are one point off the top of the Premier League but we need to improve a lot. Now we have two weeks before the next game - but it is a very tough schedule when we return."
"After Barcelona on Wednesday, the most important thing was to win. We created a lot of chances but we didn't kill the game. I'm happy to finish with 18 points going into the international break. We only conceded a few chances and we finished the game on top."
Spurs are next in action when they face West Ham United at the London Stadium on October 20.