Tottenham's boss Mauricio Pochettino has said that the team could take five to ten years to develop the mentality to push for the Premier League title.
"We have to look at ourselves and maybe assess ourselves in different ways - we are not looking for excuses," goal.com quoted Pochettino as saying.
"It is holding us back and it might take five years' work, 10 years' work to change that."
Tottenham suffered a 2-1 loss to Burnley and they are now six points behind league leaders Liverpool and five points behind Manchester City.
"If you want to be a real contender, playing well or not, it is (the game against Burnley) a must-win."
"You need to show you are fighting for big things and I am frustrated because we did not show the same energy as Burnley, the same attitude as Burnley, the same ambition as Burnley."
Tottenham faces Chelsea on Wednesday and the club would hope to reduce the lead of Liverpool and Manchester City.
"To go away and play the likes of Chelsea, Arsenal - that is easy you don't need a manager to motivate you for those games, that is normal. But if we don't have the will to show that (against Burnley), then you don't deserve anything," Pochettino concluded.
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