Ange Postecoglou told the one thing Tottenham must do vs Arsenal in North London Derby showdown

William Gallas has called on Tottenham to score first if they want to beat Arsenal in Sunday's North London Derby. Playing out a 2-2 draw at the Emirates Stadium back in September, all eyes will be on this weekend's clash at Tottenham Hotspur Stadium with both sides looking to achieve their respective goals come the end of the season.

A win for Tottenham would give them a huge boost in the hunt for Champions League football, while rivals Arsenal need maximum points as they compete with Man City for the Premier League title. The Gunners will certainly go into the game in confident mood after hitting Chelsea for five on Tuesday evening, a result that has seen them maintain top spot ahead of the derby clash.

Going on Arsenal's latest win and the confidence in their squad at present, Gallas believes there will only be one winner if it is the visitors who score the crucial first goal at Tottenham Hotspur Stadium.

«We don’t know how Tottenham are going to approach this game,» said the Frenchman when speaking to Lord Ping. «Postecoglou generally sticks to his guns, so we can expect the team to press the ball very high and to also play with a high defensive line. They can play in this aggressive way without the ball because they have players that are very quick, especially at the back.

»Arsenal can play beautiful football. They have players that can exploit the spaces that Tottenham will leave, so I think it will be difficult to stop Arsenal, especially after the 5-0 result against Chelsea. This is a group that are full of confidence. They are playing without pressure. I think Arsenal will win if they can score first. They will travel to the Tottenham Stadium with the same spirit as they approach the Chelsea game.

«If Tottenham score