Gabriel Magalhaes headed Arsenal to a 1-0 win at Tottenham on Sunday as the Gunners overcame the absence of key midfielders Declan Rice and Martin Odegaard to extend their north London derby dominance.Mikel Arteta’s side were without skipper Odegaard due to an ankle injury suffered on Norway duty, while Rice served a suspension for his red card against Brighton.Losing two such influential players appeared to make Arsenal vulnerable on their trip up the Seven Sisters Road to face their bitter rivals.But the Premier League title contenders dug deep with a combative display, benefitting from Tottenham’s latest display of wasteful finishing before Gabriel bagged the winner in the second half.The Brazilian defender’s first goal since February made it three wins from four league games for unbeaten Arsenal as they chase a first title since 2004 after two successive runners-up finishes.Arsenal have now won on their last three visits to Tottenham, losing just once, in May 2022, in their last eight meetings with their hated neighbours.The second placed Gunners are two points behind Manchester City as they turn their attention to their Champions League opener at Atalanta on Thursday before travelling to face Pep Guardiola’s champions next weekend.The 196th north London derby showed Arsenal have steel and spirit aplenty, but they also needed a dose of good fortune as Tottenham let them off the hook in the first half.Failing to turn dominant spells into goals has been a familiar story for Tottenham this season and once again Ange Postecoglou’s men were let down by their lack of cutting edge.Tottenham’s second successive defeat leaves them with only one win from four games in a worrying start to the season for Postecoglou after their