Chelsea manager Frank Lampard on Lo Celso's challenge: "Everybody knew they had made a mistake. We have the monitor and can view it and we were just waiting for the red card, not with any pleasure because it was a tackle that endangered the player.
"It is just not good enough. No more to say. To see it afterwards and saying they made a mistake is not good enough. They had a couple of minutes to look at it and got it wrong.
"It is another huge question mark over VAR. Referees have such a difficult job and VAR was brought in to help them, make the game better and that is just so wrong today. It's another huge question mark.
"This one didn't need a monitor. It is a clear human decision - straight to Stockley Park, red card, game goes on but that one was wrong."
Tottenham boss Jose Mourinho to MOTD: "I think you are going to be very bored with me, because I think I'm going to be very repetitive. I'm going to say exactly the same words I said against Leipzig.
"I'm very proud of the players - they gave absolutely everything. We don't have a striker. Our attacking players are not strikers and are in huge levels of fatigue, so very, very difficult for us. No tactical problems, [we were] completely in control of the space, punished by a couple of individual mistakes.
"A defeat is a defeat, but the good thing is, in the last seconds the players were still fighting for a result and that for me is a very important thing.
"In the last part of the game when Chelsea was scared of the 2-1 we didn't have that presence, that power, we didn't have that to do more than what we did."