Triple premiership player Luke Power will move into a full-time coaching role at Greater Western Sydney after announcing his retirement on Tuesday.
The 32-year-old, who shared the Giants' inaugural captaincy with Callan Ward and Phil Davis, will work under coach Kevin Sheedy as an assistant.
"A year ago when I retired from the Brisbane Lions I probably wasn't equipped to go in to a role in coaching or in football," Power said.
"Under the tutelage of a lot of people this year I've learned a lot about the game, a lot about myself and about teaching young players.
"I think it's the right time. I was pretty happy with what we were able to achieve this year and the best thing for me is what is best for the group going forward."
He added: "To get to 300 games was fantastic. It's an amazing milestone and I think it shows my longevity in the game and professionalism in being able to get up for a large number of games. That's probably something that I'm most proud of."
Power was drafted to the Lions with the fifth pick in the 1997 draft and earned All-Australian selection in 2004.
"Luke is one of the most respected people in the game and has been a wonderful leader for our young players on and off the field over the past 12 months," GWS chief executive David Matthews said.
"He will always have a special place in the history of this club as one of its inaugural captains."