Just over a year ago West Ham put a spoke in the wheel of Tottenham's title challenge with a 1-0 win at Upton Park when victory would have put Spurs level with Leicester City.
Spurs were looking lethargic at the Olympic Stadium when Manuel Lanzini punished them in the 65th minute by grabbing the only goal of the London derby.
"Now it's better to forget it a little bit and see what happens, and try to analyse and understand why it was hard for us to get the three points here". We are disappointed with the result. "It is disappointing with the result, now we wait for the Chelsea result then it's three games ahead to play", Pochettino told Sky Sports.
Spurs aren't mathematically dead yet, but their shock upset loss at West Ham United effectively sealed their fate. "We were not capable of doing more", the goalkeeper said. Maybe we didn't deserve to lose, but we did because we conceded a goal.
He said: "It will be a very important game, the last at White Hart Lane against Manchester United with the possibility of finishing at White Hart Lane in the best way".
"It wasn't the same performance we played last week".
Tottenham were stunned though when West Ham broke forward and Aaron Cresswell's cross eventually squirmed its way to Lanzini who smashed the ball past Hugo Lloris from six metres out to speak wild celebrations around the ground.
"I think we approached the game well, we just lacked a bit of intensity and decisiveness at times and we didn't create enough chances for the possession we had".
"It was a hard game and if you compare (it) with five days ago against Arsenal, I think it was a different game and it wasn't the same performance that we played last week".
"We knew before this game and we've known for a few weeks now that we're not allowed to slip". When you can not get first place, you need to make sure to secure second place, and it will already be a success for Tottenham.
Tottenham made the short trip to east London knowing they could heap pressure on Chelsea before their game against Middlesbrough on Monday.