Spurs had Xavi Simons and Cristiano Romeo sent off as Liverpool won 2-1 thanks to a brace from Hugo Ekitike. Richarlison had given some hope when cutting the lead, though Romero's late dismissal played into Liverpool's hands.
Frank said afterwards: "I think overall it was a good performance tonight. Proud of the players and the team and how they responded. I actually think the first 30 (minutes) was also good from us and how we responded to setbacks through the game. It’s something we have been working very hard on because that is the biggest thing the best teams need to do.
"How do we respond to setbacks during a game because the best teams deal with it and move on and keep going. Stick to the plan, we talked about it before, structure and everything. Today we did that excellently. There was great personality and character in the team.
"The first red which I have seen before, I also said before definitely a few times at Brentford and I have seen others, I don’t like this as a red card. I think the game is, probably too big to say gone, but for me it’s not reckless and it’s not exceptional force. He is chasing Van Dijk. He is trying to put pressure and then he changes direction.
"Unfortunately his foot is on (Virgil van Dijk’s) Achilles. You can say ‘ah, you need to be smarter, don’t do it and all that’ but so are we not allowed to have physical contact anymore? The next thing on that is if he gets three games, which I don’t understand, how can he get three games for something which is not reckless? That is absolutely wrong and we probably can’t appeal it.
"(We) responded excellently to that. Then 1-0 goal, we kept going. I think the second goal is a mistake from the ref. I think there are two hands in the back. Clear two hands in the back. I don’t understand how you can do that. Everywhere else you have seen that a thousand times out there on the pitch, someone will go up for a header, a goal kick into the centre-back, two hands in the back ‘boom’ foul. But apparently not in the penalty box. I think that was the biggest mistake in my opinion and from VAR but apparently that was not enough. We kept going."
On the home support, Frank was particularly pleased with how they were behind the players.
He also said, "Definitely the crowd were excellent and the fans were excellent today. I think they kept us going throughout the game and especially the last let's say 20 (minutes). They almost sucked the second goal into the net as well. Unfortunately, it didn't happen. It would have been an excellent comeback."