Tottenham Hotspur midfielder Stambouli reveals the confidence within Pochettino's team is sky high despite their 2-1 defeat to Crystal Palace last weekend at Selhurst Park.
However, the 24-year-old says they've moved on from the defeat and still have enough to beat any opponent as they welcome Gus Poyet's Sunderland to White Hart Lane on Saturday.
“We have to learn from our mistakes – especially me after the penalty at Palace,” Stambouli told Tottenham’s website.
“Now I want to improve and to be better for the team. The most important thing on Saturday is to have a good spirit among the team, a fighting spirit.
“At the moment we have good morale and we feel we can beat anyone. We saw that against Chelsea.
“As long as everyone is on their game we can beat anyone.”
The Frenchman played against Sunderland at the Stadium of Light on his debut for the Lilywhites and says he expects the tie to be a tough one.
“I remember that physically it was a tough game when I made my debut at Sunderland and I was surprised by the rhythm of the game – it was a big change from football in France,” Stambouli said.
“It was my first game for Tottenham and it was a good memory for me.
“Now we are playing Sunderland at home and it’s a very important game.
“We are ambitious, we’re taking it game-by-game and it’s important for us to push on.”