The eight-tournament golf series, founded by two-time British Open winner Greg Norman, is supported financially by Saudi Arabia's Public Investment Fund.
Johnson announced that he was resigning from the PGA Tour and intends to participate only in LIV Golf events and major championships in the future.
Mickelson, who became oldest player to win a major when he triumphed at the 2021 PGA Championship, will return to golf at the LIV series after a four-month hiatus.
Na announced on social media Saturday that he was resigning from the PGA Tour to pursue the LIV series.
García, who ranks 10th all time on the PGA Tour money list, has 36 international tournament victories in his career.
Oosthuizen resigned his PGA Tour membership to play in the LIV on Tuesday. The South African native who resides in Ocala, Florida, has finished as a runner-up in six major championships and won the 2010 British Open.
Gooch, who turned professional in 2014 after playing at Oklahoma State, said Tuesday during the LIV news conference that assertions the series participates in sportswashing
Over the past weekend, the English pro who has won 12 times on the European Tour, made a hole-in-one in the 17th hole of a practice round at the Centurion Golf Club.
Kaymer, who hails from Germany, explained that the additional money to be earned at the LIV series is not the singular motivator for joining the new league.
McDowell lost his sponsorship with the Royal Bank of Canada because he joined the LIV series.
Westwood has received some backlash from fans after sharing a video of himself on Twitter offering the first 100 people to follow his instructions free tickets for the LIV Golf Invitational Series event in London.
Schwartzel, who broke out in 2011 after winning The Masters, resigned from the PGA Tour to compete in the LIV Series. The Johannesburg, South Africa native achieved his highest world ranking of sixth in 2012.