The Togolese forward tapped in a 10th-minute opener after Wojciech Szczesny saved from Jermain Defoe but was sent off eight minutes later for an uncontrolled lunge at Santi Cazorla.[break]
Per Mertesacker´s 24th-minute header drew Arsenal level and quick-fire goals from Lukas Podolski and Olivier Giroud put the hosts 3-1 up at half-time.
Cazorla converted Podolski´s fine cross on the hour to increase Arsenal´s lead, before Gareth Bale drove home a low shot to reduce the arrears in the 71st minute.
Arsenal´s French striker Olivier Giroud (L) celebrates scoring their third with English striker Theo Walcott (R) goal during the English Premier League football match between Arsenal and Tottenham Hotspur at The Emirates Stadium in north London, England. (AFP)
Arsenal had the final say though, Theo Walcott converting from substitute Alex Oxlade-Chamberlain´s pass in injury time to produce a repeat of the scoreline from last season´s equivalent fixture in February.
It was Arsenal´s first win in four matches in all competitions and took them up to sixth place in the Premier League table, with Spurs two points further back in eighth after a third successive league defeat.
Defending champions Manchester City can assume top spot later on Saturday if they win at home to Aston Villa, with leaders Manchester United playing at Norwich City in the evening kick-off.
Third-placed Chelsea visit manager Roberto Di Matteo´s former club, West Bromwich Albion, while Everton will bid to keep hold of fourth place at third-bottom Reading.
A crucial game at the table´s base sees bottom club Queens Park Rangers host second-bottom Southampton.
In the day´s other fixtures, Liverpool host Wigan Athletic and Swansea City visit Newcastle United.
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