Mikel Arteta could not hide his frustration after seeing Arsenal throw away a winning position to fall further behind in the race for a spot in Europe next season.
A win for the Gunners in Sunday's north London derby would have restored them to within a point of seventh-placed Sheffield United, who thrashed Chelsea 3-0 the previous day to strengthen their claim on the final Europa League spot.
But despite going ahead via Alexandre Lacazette's brilliant long-ranged strike, the visitors could only watch as Tottenham grabbed an instant equaliser through Son Heung-Min before Toby Alderweireld secured victory with a late header.