Serge Aurier has declared Thursday's clash with Sheffield United as must-win for Spurs to keep their top-four chances alive.
Spurs are nine points adrift of the top-four with a game in hand, with Chelsea unable to increase their lead after losing to West Ham United.
And Aurier has urged his side to reduce the gap by beating the Blades, who are also holding on to European hopes.
"We never stopped working during the isolation. We worked hard at home. We worked a lot," Aurier told the club's website.
"The lockdown obviously stopped a lot, but we stayed together with things like Zoom and we would talk all the time. Like after training we would talk, seeing how everyone is doing and hearing each other's news and that.
"We never lost that feeling of togetherness - for me, that was really good. Everyone was really happy to get back to training together and then you see that on the pitch as well. Everyone is fit and trying to give everything.
"We've now played two games. Against Manchester United, we had the possibility to win that, but we drew and then we managed to win the derby against West Ham.
"I think we are in a good way. I think Sheffield United is now a big test for us. If we want to finish in the top four, we need to win this game.
"They are very good team. When we played them at home in November, we drew, and I can remember that being a tough game. We just need to remain concentrated on our objective and on ourselves as a group. They are strong but we only look at ourselves."