Phil Mickelson says his name on the lawsuit against the PGA Tour is no longer necessary after the LIV Golf International Series joined its players as a plaintiff.

LIV Golf players accused the PGA Tour of benefiting from operating as a monopoly, while alleging the former tour had improperly suspended the defectors following their decision to join the breakaway league.

Abraham Ancer, Carlos Ortiz, Pat Perez and Jason Kokrak have already withdrawn their names from the lawsuit, with the lawsuit losing four of its 11 original plaintiffs.

Talor Gooch, Matt Jones and Hudson Swafford – three players still on the lawsuit – had sought a temporary order to allow them to compete in the PGA Tour's playoffs but were unsuccessful with their request.

Ian Poulter and Bryson DeChambeau are also among the high-profile names to sue, alongside Mickelson, who may step away from the lawsuit after LIV Golf became involved.

"I haven't done anything yet, but now that LIV is involved, it's not necessary for me to be a part of it," Mickelson said after playing at a LIV Golf warm-up event at Rich Harvest Farms on Thursday.

"I currently still am [part of the lawsuit]. I don't know what I'm really going to do. The only reason for me to stay in it is damages, which I don't really want or need anything.

"I do think that it's important that players have the right to be able to play when and where they want and when and where they've qualified for.

"Now that LIV is a part of [the lawsuit] that will be accomplished if and when they win."

The PGA Tour suspension will mean Mickelson, along with Dustin Johnson, Brooks Koepka and Patrick Reed cannot represent the United States in September's Presidents Cup.