Arsenal reign supreme in north London once again as victory against Everton propelled the Gunners above Tottenham in the Premier League table.
Spurs had a ten point lead on their local rivals when the two sides met last month, but a 5-2 win for Arsene Wenger's side that day followed by three further victories has seen Arsenal move into third place.
Thomas Vermaelen was the hero for the Gunners at Goodison Park; heading in a corner from captain Robin van Persie with barely seven minutes on the clock.
It transpired to be the Belgian centre-back's second winning goal in as many games, having scored in the dying stages against Newcastle nine days ago.
Everton, however, were aggrieved somewhat after having a legitimate goal from Royston Drenthe chalked off for offside shortly before the halfway stage.
There was a sense that the Toffees began the second half knowing they had been wronged and, although unable to create too many clear cut opportunities, David Moyes' side began to get a foothold in the game.
Van Persie, though, could have furthered Arsenal's advantage, but saw his shot cannon off the bar before Maroaune Fellaini fired wide on the counter.
But Arsenal continued to repel the advances of Everton and held on for another valuable three points in pursuit of a place in next season's Champions League.
The Gunners are now unbeaten in their last seven league outings - having won six matches in succession.