Arsenal came from behind to beat Tottenham 5-2 in the Premier League on Saturday, seizing control of the north London derby after its former striker Emmanuel Adebayor was sent off having scored the opener.
Adebayor netted his first league goal of the season in the 10th minute but was dismissed eight minutes later for a dangerous high challenge on Santi Cazorla.
Per Mertesacker started Arsenal's comeback with a 24th-minute header, and Lukas Podolski and Olivier Giroud both found the net before halftime.
Cazorla swept in the fourth goal on the hour before Gareth Bale reduced the deficit for Tottenham, and Theo Walcott knocked in the fifth in stoppage time.
By replicating its 5-2 derby win in February, Arsenal rose above Tottenham in the standings to sixth after the club's worst start to a season since Arsene Wenger took charge in 1996.
''If we show that courage and ambition every game we will climb up the table,'' Walcott said. ''We showed people how good we are today ... it will...