Tottenham ace Gareth Bale has fired a warning at Arsenal ahead of the North London derby.

The Real Madrid loanee struck a brace in Sunday's 4-1 victory over Crystal Palace to continue his own excellent form.

Bale has hit a purple patch during the last month with six goals and three assists in his last six games in all competitions to help Spurs put together a five-game winning streak.

It has ignited their top four hopes in the Premier League at a crucial time, with a short trip to rivals Arsenal up next in the division on Sunday.

"Going into next week's game we have confidence behind us now but we know it's going to be difficult," Bale said.

"Obviously a midweek game (against Dinamo Zagreb in the Europa League) before that but we'll recover and go again."