Tottenham boss Mauricio Pochettino says courage will be key for his team if they are to win Sunday's game against Man City.

Spurs must be brave - Pochettino

Spurs must be brave - Pochettino

Spurs face Manchester City on Sunday in a clash of first against second in the Premier League, with City sitting four points clear at the top after winning all six of their games so far.

Pochettino, however, knows what it takes to get the better of City boss Pep Guardiola.

In 2009, the Argentinian took over an Espanyol side in the relegation zone and five points from safety but, in his first game, they ground out a 0-0 draw against Guardiola's Barcelona in the Copa del Rey quarter-finals.

One month later, Pochettino registered his first Espanyol victory as they beat Barca 2-1 and ended a six-month unbeaten streak for Guardiola's men. It was the first time Espanyol had won at the Nou Camp in 27 years.

Pochettino is now keen to inflict a first defeat on Guardiola since he took over as City boss and feels the key to defeating Sunday's visitors to White Hart Lane will be courage.

"It is about your personality, how you are," Pochettino said. "It is your lifestyle and you show on the pitch how you are.

"If you are brave in your life, you cannot behave in a different way on the pitch. It is about how you feel, how you are, your character.

"I don't understand how to play in a different way. Always be brave, I like to be brave."

Pochettino retains nothing but respect for Guardiola's achievements with Barcelona and Bayern Munich, and hails him as the poster boy for a new generation of modern managers.

"He is the face of the change, when you mix the romantic football with the new technology," Pochettino said. "I think he is the start of the new era in football."