The pair were among 11 golfers who had challenged the suspensions imposed on them after they had signed up for the controversial Saudi-backed series.
The trial is set for January 2024.
Abraham Ancer, Carlos Ortiz, Pat Perez and Jason Kokrak had previously previously removed their names from the case.
The remaining plaintiffs are LIV Golf, Bryson DeChambeau, Matt Jones and Peter Uihlein.
“Nothing has changed,” LIV Golf spokesman Jonathan Grella said in a statement.
“The merits of the case – the PGA Tour’s anti-competitive conduct – still stand and will be fully tested in court. And we look forward to that.
“LIV stands with the players whom the PGA Tour has treated so poorly, but we also recognise that to be successful, we no longer need a wide array of players to be on the suit.
“We have our players’ backs and will press our case against the PGA Tour’s anti-competitive behaviour.”