Brendan Rodgers’ side were comprehensively beaten 2-0 by the Gunners, with the Merseyside outfit still without a victory following a draw with Manchester City and a defeat by West Bromwich.
The Northern Irishman, who replaced Kenny Dalglish as Red boss in May, has endured a difficult start to his reign which was compounded by the club’s failure to bring in attacking reinforcements following Andy Carroll’s loan move to West Ham.
Agger pointed out Liverpool had opportunities to score against the Gunners but were guilty of being wasteful, with the Denmark international maintaining the Reds squad will bounce back from the latest setback.
“You could see against Arsenal that it wasn’t only one player,” he said. “It wasn’t two players, it was three, four, five, six players who had chances, including myself.
“The chances are there and that’s the most important thing. But we all need to start taking them.
“I’m still upbeat about the quality in the group. Everybody has to believe in it, otherwise they shouldn’t be at a club like this.”
He added: “Overall we didn’t play well enough,” he reflected. “We gifted them two easy goals and didn’t score any ourselves. You can’t win a game if you do that.
“Nothing is easy to fix. Not in football and not in life. But we are working on the manager’s ideas every single day, so hopefully we can get better and better during the course of the season.”
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