Arsenal have scored three goals in five second-half minutes as they came from 2-0 down to draw 3-3 with Liverpool in another thrilling Premier League encounter between the two sides.
Trailing to goals from Philippe Coutinho and Mohamed Salah at The Emirates, Arsenal took the lead through Alexis Sanchez, Granit Xhaka and Mesut Oezil but Roberto Firmino earned a point for the visitors.
The result left Liverpool fourth on 35 points, one point above Arsenal and 17 off leaders Manchester City.
"We should have won today, we made three mistakes," Liverpool manager Juergen Klopp said.
"It feels not too good at the moment.
"Arsenal were not in the game, apart from 10 minutes."
Having shared seven goals at The Emirates on the opening weekend of last season -- won 4-3 by Liverpool - --goals always looked on the agenda in what was the first match of the Christmas program.
Klopp's side dominated the first half and could have been out of sight by the break.
"I thought we were the better side (in the first half), they couldn't play like they want to play," Klopp said.
"I thought we could score another two, three or four goals. We didn't do that but that's life."
Petr Cech made a couple of saves before Coutinho gave Liverpool the lead after 26 minutes with a lofted header off Salah's deflected cross.
The league's top scorer Salah doubled their lead on 52 minutes with a slightly deflected shot to take his season tally to 15.
"We were paralysed and frozen," Wenger said.
"We played too deep. We gave too many balls away."
"It could have been game over at halftime because we played a nightmare first half."
Arsenal looked out of it but within five second-half minutes they were in front, scoring with each of their three shots on target in the match.
First, Sanchez gave them a lifeline when he headed home at the far post after a back-heel from Xhaka and a cross from Hector Bellerin.
Then Simon Mignolet flapped at a long-range Xhaka shot that flew into the net.
"He misjudged it," Klopp said of his goalkeeper.
Finally, Oezil chipped in a third after a beautifully-worked goal which included a back-heel assist from Alexandre Lacazette.
Liverpool were all at sea but they dug in and on 71 minutes, Firmino fired a left-foot strike which Petr Cech got a right hand to but could not keep out.
"We came back again and scored our third one, that's the minimum we deserved today, a point," Klopp said.
Reuters