Tottenham caretaker boss Ryan Mason admits the players are frustrated after their 4-3 defeat at Liverpool.
The Reds fought back from 3-0 down to draw level only for Diogo Jota to grab Liverpool's winner on 94 minutes.
Mason said: "To give a team a three goal lead makes it almost impossible to come back from.
"The feeling is that we can score goals and hurt opponents. We created chances, they didn't give us anything we had to work for that. To equalise at the end and then give away another goal is so hard to take.
"I probably speak for everyone that there was some fear [after conceded three goals]. To give a team goals, it's hard to understand why. We need to address that and be better. After that we showed togetherness.
"I don't know how many shots they had on target but it felt like we had more.
"This is the Premier League, it's relentless and you have to be ready to fight for 95 minutes. We conceded three terrible goals and it's hard to explain why that happended. It's tough to take."
On whether Jota should have been shown a red card for his clash with Oliver Skipp, Mason said: "Honestly, it's probably the clearest red card you will see on the football pitch. I need an explanation. It endangered the opponent, Skipp needs stitches and Jota has scored the goal when he shouldn't be on the pitch."