Richmond forward Ben Griffiths has retired from the AFL to complete a shock code switch with a college football team in the United States.
The 26-year-old played just two senior games in 2017 as concussion and shoulder injuries kept him out of the team or in the VFL.
He will become a punter for the University of Southern California, joining the college on a four-year scholarship.
"This was a difficult decision to make, but ultimately the opportunity was too good to refuse," he said in a statement, having informed the Tigers on Thursday morning.
"It certainly wasn't something I had been contemplating and only arose two weeks ago.
“It was tough telling my teammates and coaches this morning but they understand and support my decision.
"I’ll always be grateful for the opportunity to play AFL football and it was an honour to represent the Richmond Football Club.”
The Tigers will now be a player short for the 2018 season, with AFL list rules barring the reigning premiers from replacing Griffiths.
Griffiths joins former teammate Ben Lennon in seeking a career in the American sport.
Lennon, 22, was delisted by the TIgers and rejected interest from other AFL clubs to begin his attempt to become an NFL punter.