The Dane has the chance to collect a Premier League winners' medal this season due to Liverpool's current position at the top of the table with six games left to play.
Aside from his football commitments, Agger has claimed that he used to play tennis when he was a youngster.
During a Q&A session with Liverpool fans via the club's official Twitter page, Agger said: "I played a lot of tennis when I was younger, so I still enjoy playing. I like to think I was okay at it, but I'm not sure!"
The Reds will take on West Ham United at Upton Park this Sunday.