New Tottenham signing William Gallas believes he has joined a side that possesses enough quality to mount a serious Premier League title challenge this season.
Gallas, 33, became the most high-profile player to cross the north London divide since Sol Campbell on Sunday when he signed a one-year contract at Spurs.
And Gallas believes he can emulate the achievement of Campbell - who won the the championship in his first season at Arsenal - by lifting the Premier League title in his debut season at White Hart Lane.
"Finishing fourth last season shows Spurs have improved a lot and I hope this season we are going to finish even higher, maybe even win the Premier League,'' Gallas told Tottenham's official website.
"We just have to believe in ourselves. We have got young players with great quality. They just have to believe in their capacity to do something and I hope we can achieve this.''
Gallas' controversial move is bound to go down badly with a number of Arsenal supporters, and perhaps even some fans of the team he has joined.
Manager Harry Redknapp revealed on Friday he had been in talks for some weeks with the versatile France defender, who it appears did need to be convinced to move directly from Spurs' arch-rivals after becoming a free agent this summer.
"It was not an easy decision but I am here now and I will give my best,'' Gallas said. "What is most important to me is to play games and to give everything.''
"I just want to be fit as soon as possible, train with my team-mates and play matches. I want to show everybody I am still here.''
Gallas will miss Wednesday's must-win Champions League clash with Young Boys but will feature if Tottenham overturn a 3-2 play-off round deficit and progress to the group stage.
And the France defender admits the prospect of playing in Europe's elite club competition for the eighth season in a row is an attractive one.
"Spurs are ready for the Champions League, even though they lost the first game, he said. "It is the best level to play at as you are up against the biggest teams and you can show how good you are.
"The atmosphere is so great. When you hear the music, you just want to get on the pitch and battle for 90 minutes, and it would be good for Spurs.''