After a surprising draw against West Bromwich Albion, Liverpool boss Jurgen Klopp took a cheeky dig at Sam Allardyce's formation.
The WBA boss returned to the Premier League after a two-year absence and thanks to an 82nd minute equaliser from Semi Ajayi, managed a draw with the champions.
"It was our own fault," Klopp told Sky Sports.
"I don't think anyone can expect that a team plays like West Brom in the first half, with a 6-4 [formation] or whatever it was.
"I thought we did OK, we scored a goal and didn't give anything away, especially set-pieces.
"But second half, obviously, we didn't do the same again. They had three counter attacks in the first five minutes and we gave them simple, easy corners.
"That was the only thing they wanted to have tonight, and we gave them away. It is our fault and that is why it is only one point instead of three.
"It is an incredible challenge to stay active and lively when you constantly face 10 men. To be fair, West Brom did their job. We were 1-0 up and they didn't change a bit.
"West Brom deserved the point tonight because we didn't finish the game and didn't have enough clear-cut chances. It is difficult to create - it's a busy period and all that stuff.
"But in the end, everyone knows and feels we should have and could have done better tonight and then we would have won the game."