Tim Moltzen has announced his retirement from rugby league following further complications with an ongoing knee injury.

Signed by the Manly Warringah Sea Eagles late last year on a one year contract for 2016, the 27-year-old has battled a recurring chronic knee injury that had plagued him at his former club, Wests Tigers.

Moltzen represented the Sea Eagles in the Auckland Nines tournament and was playing well in the Intrust Super Premiership competition before being struck by injury.

The former full-back, five-eighth and halfback played 90 NRL matches for the Wests Tigers from 2008-13, scoring 39 tries in a career that was severely hampered by injury.

"The medical advice I have received is that for my own quality of life and to enjoy being active in the future with my own children, the best decision for me is to retire,'' Moltzen said.

"As much as I want to keep on playing, the truth is my body is now nowhere near where it was when I was playing my best footy.

"I would like to thank Trent Barrett, the Manly coaching staff, my team-mates, and the Manly administration for sticking by me, and giving me the chance to prove myself, both mentally and physically. Their faith in me has meant the world.

"It is very disappointing at 27 to call it a day and by no means was it an easy decision. It was definitely not something I wanted to do, but it is something I have been forced to do."

Full story at SeaEagles.com.au.