Newcastle Knights wing James McManus will not take part in the upcoming NRL season following medical advice.
McManus has not played since leaving the field after sustaining a concussion just six minutes into the 52-6 defeat to the South Sydney Rabbitohs on July 25.
The 30-year-old, who has made three appearances for New South Wales in State of Origin during his career, had been rumoured to be set to retire as a result.
However, he has instead decided to take an indefinite break from the game in order to assess his options.
"I need rest and time to work through my options," McManus said in a statement. "This has been a difficult time and I certainly appreciate everyone's support."
McManus made his debut for the Knights in 2007 and has commenced work with the club's commercial team.