Alderweireld had failed to feature in the first three games since the Premier League resumed in June.
But the 31-year-old said every player on the pitch was vital in securing the three points and gave particular praise to his centre-back partner Eric Dier.
"I'm a small piece of the puzzle and I'm happy to contribute," he told Tottenham's official website. "We need everyone in the team to get good results, like we showed today. Eric [Dier] is doing very well.
"We have a big squad and everyone has to be ready to play when needed. We have a lot of games coming up in a short space of time, so we need everyone."