It was the competition that shook the world of golf.
Now players who signed with the Saudi-backed LIV Golf Tournament are suing their former payers, the PGA Tour, for suspending them for joining the competition on a breakaway.
Six-time major champion Phil Mickelson and 10 other golfers are the plaintiffs who filed their antitrust lawsuit on Wednesday.
The lawsuit says the PGA Tour threatened to impose lifetime bans on them and accuse the organization of having a monopoly on golf.
Three of the players are requesting a temporary restraining order that would allow them to play in future competitions on the tour.
LIV has been a major disruptor in the sport of golf, turning players away from established tours with bigger prize money and lucrative signing bonuses.
PGA Tour chief Jay Monahan said the lawsuit was an attempt by the players, who chose to walk away, to force their way back into the organization.