North Queensland Cowboys and Kiwis playmaker Te Maire Martin has announced his immediate retirement from rugby league.
Martin has been sidelined since suffering a bleed on the brain in April last year.
While the 24-year-old has made significant strides in his recovery, he has not improved to the point required to receive a clearance to return to full contact.
"The last nine months have been extremely difficult," Martin said.
"I'd like to reassure everyone that I'm doing well and I have recovered to the point where my day to day life isn't affected, but I can't get past the contact stage of training, which means I can't play footy anymore.