Brisbane Lions’ Jonathan Brown is retiring from Australian Football due to another concussion against the Greater Western Sydney in round 13 of the Australian Football League (AFL).

It was one of the many injuries he suffered in his 15-year footy career—and from one of the many tough plays he made in the AFL.

"It's become evident I don't respond or bounce back like I used to from those hits," Brown shared to watoday.com.au. "It wasn't worth the risk of going out there and copping another head knock and jeopardising my future with my wife and kids."

Brown was advised by team doctors in returning to the field after the latest serious incident and he chose not to risk it as he was bound for retirement anyway at the end of the season.

"It’s the invisible injuries, the head injuries that no one can really predict, and that's more important than what's below the neck," add the 32-year-old forward from Warrnambool, Victoria, Australia.

Recruited from the South Warrnambool and Geelong Falcons, Brown joined the Lions in 2000 and has played his entire AFL career with the Brisbane squad appearing in 256 games with 594 goals.

They won the premiership in 2001, 2002 and 2003. Brown was named to the All-Australian team in 2007 and 2009 and was the captain of the squad from 2007 to 2013.