The old football adage goes that 2-0 is a dangerous lead. As against Crystal Palace two weeks ago, Spurs were about to prove 1-0 is far worse.
Spurs cannot afford to dwell on their disappointment. Mourinho's team now travel to Anfield for the stiffest examination yet of their title credentials.
The only real danger came from Tottenham's own complacency and their bad habit of conceding freekicks in wide-areas, which they have struggled to defend so far this season.
At the start of this season it was clear to see a disconnect between the manager and squad, something had to give and in the modern world of football it was the gaffer that bit the bullet.
Five Statements. Have your say on the main talking points from our weekend game.
As he witnessed the game that finally confirmed that North London is ours, Jimmy Riggle has mixed emotions on his final trip to the old White Hart Lane.
Sunday is a big day. It's time. This isn’t a game of football. This is about identity. This is about good versus scum.
Tom Float makes his debut on The Fighting Cock looking at the magic, tears and blood that have gone into making White Hart Lane our home. He recalls the moments of glory, bitterness and laughter, and two memories that will stay with him forever.