Ronald Koeman took responsibility for Southampton's second-half collapse as Liverpool progressed in the Capital One Cup.
The 6-1 defeat, which saw Koeman’s side exit the competition at the quarter-final stage, came after Sadio Mané had opened the scoring in the first minute.
But defensive errors allowed Jürgen Klopp’s side to take a 3-1 advantage into half time and they never looked back, adding a further three goals in the second period.
“I think it was a great start in the game and a great goal from Sadio,” Koeman told youtube.com/southamptonfc.
“After that, until half time, we did some defensive mistakes and we were punished by great quality of Liverpool.
“But if you analyse the first goal it is out of a situation of a throw-in and it’s too easy the space what we gave them.
“That was already the start of a difficult period in the game and it was 3-1 by half time. It’s difficult.”
Koeman went with a three-man defence in the second half as Saints looked to turn and overturn the two-goal deficit, but the move backfired as Divock Origi scored two and Jordan Ibe grabbed one.
“The second half is my responsibility,” Koeman admitted. “I took the risk to play with three at the back to change the system and try to come back in the game.
“They punished us from incredible high quality in the space, which they had more of in the second half.”
Koeman also praised Saints supporters for their backing on a difficult night, adding: “They know they are fantastic fans. I didn’t hear any whistles after 90 minutes.
“The fans are always helping the team.”