Triple premiership forward Jason Castagna has called time on his career with Richmond after 134 games, citing he has "given my all" to the game.

Richmond confirmed the decision on Monday afternoon, with Castagna stating he "cannot give that same energy" he once could in the yellow and black.

“I love everything about this Club and everyone in it, which has been the thing that has made this decision the hardest,” Castagna said in a club statement.

“This game is such a demanding one physically and mentally, and something I have given my all to since I first walked in the doors here and for the years before that.

“Now that I cannot give that same energy, it has made me realise that I would be letting the boys and the Club down if I just coasted through and did not give it my all until the end, which has led me to this call.”

Castagna joined Richmond as the 29th overall pick in the 2014 Rookie Draft and would make his debut against Port Adelaide in 2016.

The Northern Knights product would play in all three of Richmond's recent premiership wins in 2017, 2019 and 2020.

While the three flag wins will forever be remembered by the 26-year-old, Castagna said he will often reflect on the impact he had at the highest level.

“One my favourite things about playing AFL football has been that I got to go out on the MCG each week, warm up with the Castagna name on my back,  and represent my family. I will always be proud of that.

“The connection I feel to this group and the past players that I spent time with here as well is something I will have forever and I am so grateful that.”

Castagna's retirement comes amid an injury battle that was expected to sideline the small forward for the start of the 2023 season, having suffered a hamstring setback in recent weeks.

Castagna played 134 games for Richmond for a return of 127 goals.