The Danish international sidelined returned to action for the reserves last week and played 90 minutes of Denmark's 1-0 win over Sweden on Saturday.
"While the first-team squad were in Italy recently, Daniel Agger was making his return from injury in the less romantic surroundings of the reserve league, but he will be delighted, as will the manager and the punters, to get back into action," Dalglish told LFC Weekly.
"It's a shame that he's missed so much football over the last couple of years because he's a top class defender, and with him nearing a return to the first-team reckoning then the manager has got good options and permutations in the centre of his defence with Carra [Jamie Carragher], [Martin] Skrtel, [Sotirios] Kyrgiakos and Agger back to health."
He added: "They've all got their particular strengths and they're all internationals with a wealth of experience. Agger's a lovely silky footballer, in the way he brings the ball out of defence and commits teams who like to sit deep.
"Being able to call on him in the future will be important for the team."