Tottenham showed a "lack of desire" to win the Premier League with their first-half display in the 2-0 loss at Liverpool, says manager Mauricio Pochettino.
Sadio Mane scored twice in 18 first-half minutes at Anfield as second-placed Tottenham disappointed.
"If you start a game like we start then it is very difficult," said Pochettino.
"It is difficult to fight for the Premier League if you show that lack of desire to play for a win."
Chelsea can extend their lead at the top if they beat Burnley at Turf Moor on Sunday, and Pochettino added: "If Chelsea go 12 points clear it is a big problem.