Galloway broke into first-grade as a 17-year-old with Cronulla Sharks in 2003.

He joined Wests Tigers in 2006, going on to make 173 appearances for the club over a decade.

In 2016 the front-rower signed for English side Leeds Rhinos, but his time in Super League was hit by consecutive Achilles tendon injuries.

Galloway played five Tests for Australia and had one State of Origin appearance for NSW.

"It has been a tough decision but I know it is the right one for me and my family," he said in a statement.



"Despite my two major injuries at the Rhinos, I have loved being part of this fantastic club. I have made friendships that will last forever and I have enjoyed living in Leeds. The time is right for me to move onto the next chapter of my life.

"I haven't decided yet if I will play on at some level, if possible I would like to finish my time on the field on my terms but that will not be as a full time professional now as I look towards a career after rugby.

"I would like to thank Gary Hetherington and Brian McDermott for giving me the chance to play for Leeds Rhinos and all our backroom staff and players who have supported me throughout my time at the club. I will be backing the boys from here in Australia and will always remain a Rhino.”