Ben Davies admits Tottenham have no margin for error in their pursuit of Manchester City.
Spurs travel to Arsenal in a north London derby that Davies says his team must win to stand a chance of catching Pep Guardiola's side.
Tottenham are eight points behind City, who face Leicester, with a far inferior goal difference but Davies is still eyeing a tilt at the title.
![Ben Davies says Saturday's North London derby is a must win game for the title raceu00a0](http://i.dailymail.co.uk/i/pix/2017/11/16/10/44E2877700000578-0-image-a-2_1510827151079.jpg)
'My focus is on Arsenal, of course there is no margin for error,' said Davies.