Agger was sent off in the 3-0 reverse.
"I know we will bounce back from this," said Agger. "I think we controlled the game before the sending-off," said Agger. "We had the momentum, we kept the ball well and we created chances. The red card changed the game.
"Everyone is frustrated. I don't think the result was right. It doesn't really make sense. But that's football and it happens.
"We have to continue. We showed a bit of the football we want to play. The manager said the same - that we controlled the game, created some chances and were a bit unlucky with some decisions.
"At Liverpool, the spotlight is always there. There is no reason to panic. I think the Premier League is getting better and better. There will always be tough games ahead."