Liverpool won 2-1 in their final group game against AC Milan.
The Reds made history in the Champions League with six out of six wins in the group stage.
Jurgen Klopp fielded a rotated squad with only Alisson, Salah and Mane retained from their last win at Wolves.
“Honestly I don’t feel pride a lot in football because most of the time I expect good things happen,” Klopp said.
“But tonight there was a lot of pride, an exceptional performance; I don’t mean because we won six games, I mean this game because it was so good with that many changes.
“It is easy for me to make the changes but the boys have to be confident enough to show how good they are and I saw so many good football things tonight which is incredible.
“And we won all six games, which is absolutely incredible and just another chapter for this group of players.
“It’s not a prize (winning all six) and you win something; I’d have taken each points tally to go to the next round but 18 is the best so we take that as well.”
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