Phil Mickelson tees off on the 15th hole during the second round of the 150th Open Championship golf tournament at St. Andrews Old Course. Michael Madrid-USA TODAY Sports

Phil Mickelson has joined a growing list of golfers who have dropped out of an antitrust lawsuit against the PGA Tour.

On Aug. 3, multiple golfers who had joined LIV Golf filed an antitrust suit against the PGA Tour. The golfers were suing after being suspended by the Tour as punishment for joining LIV.

11 golfers initially joined the lawsuit. Soon after filing the suit, Carlos Ortiz dropped out. Pat Perez, Jason Kokrak and Abraham Ancer all dropped out of the suit less than a month later.

On Tuesday, we learned that Mickelson has dropped out of the suit. So too have Talor Gooch, Hudson Swafford and Ian Poulter.

Matt Jones, Peter Uihlein and Bryson DeChambeau are the only remaining golfers in the lawsuit.

Many golfers dropped out of the suit once LIV Golf got involved in the case. Those who drop out are sacrificing potential monetary damages.

Though he has dropped out of the suit, Mickelson could still be called as a witness.

More must-reads:

TODAY'S BEST
Panthers dominate Bruins to even series
Watch: Pacers star ties playoff high in threes in one half
Former NFL player has major warning for Steelers QB Justin Fields: 'You can't fall into this'
Watch: Brad Marchand hurdle Panthers player on Charlie Coyle goal
Pressure mounts on Nuggets as Nikola Jokic wins third MVP Award
Pirates announce date for 2023 No. 1 overall pick's MLB debut
LeBron James rues 'missed opportunities' against Nuggets
Cardinals star gives update on timeline for injury rehab
Police investigating Patrick Beverley incident
J.J. Watt addresses possibly ending retirement to play for Texans
Inter Miami's Lionel Messi could surpass two major MLS records
Reporter weighs in on potential Giants quarterback controversy
Cowboys to release veteran WR
Lakers want Anthony Davis' opinion in search for next head coach
Patriots exec explains why team drafted two QBs in 2024 NFL Draft
Borussia Dortmund legend 'considering' move to MLS
NHL announces Ted Lindsay Award finalists
Mavericks' Luka Doncic lists Thunder swingman among best perimeter defenders in NBA
Cowboys reportedly meeting with recently released veteran WR
Joe Burrow shares 'support' for Bengals who requested trades