For me it was that FA Cup replay where we blew a 3-0 half-time lead aganst 10-man Manchester City (the crappy City).
From the Boro corner, Gazza claims and bowls out to set the counter attack in motion, Son's shot diverted away for a corner.
Typical Spurs, Dier gives the ball away in midfield and then a free kick. From the set piece, Gestede beats Sanchez in the air and Saville runs on to score. Thoroughly deserved as Spurs have completely switched off in the second half.