Alan Shipnuck, author of an unauthorized biography of Phil Mickelson taken from a press conference at LIV Golf Invitational on Thursday, confronted Greg Norman about the incident after a video appeared showing him watching security escort Shipnuck out. Shipnuck took to Twitter on Thursday to reveal that security guards had “physically” removed him from a post-tour press conference with Mickelson at the behest of “their boss”. LIV Golf Manager Greg Norman during the LIV Golf Invitation Series at the Centurion Club, Hertfordshire, Friday, June 10, 2022. (Steven Paston / PA Images via Getty Images) The author questioned who ordered his removal and apparently showed CEO of LIV Golf Investments Greg Norman as a possibility. BOOK AUTHOR PHIL MICHELSON SAID FROM GOLFER PRESS CONFERENCE Shipnuck shared a screenshot shortly after he asked Norman if he knew he was “together,” to which Norman replied, “I did not listen. Thank you for letting me know.” But after video evidence emerged, Shipnuck sent Norman the following text of a screenshot showing him standing right behind him as security services approached him. “You can not do that — up! I texted Greg Norman before anyone sent me this video – I had no idea he was hiding behind me,” Sipnuk tweeted. CLICK HERE FOR MORE SPORTS COVERAGE AT FOXNEWS.COM Mickelson was one of the biggest names in LIV Golf in the months leading up to his first show in London. He caused a storm of fire in February when his comments to Shipnuck about the book “Phil: The Rip-Roaring (and Unauthorized!) Biography of Golf’s Most Colorful Superstar” were published in excerpts from the Fire Pit Collective. Greg Norman talks to Phil Mickelson during the LIV Golf Invitational on June 9, 2022, in St Albans, England. (Aitor Alcalde / LIV Golf / Getty Images) His comments were seen as an excuse for Saudi Arabia to be involved in the assassination of Washington Post journalist Jamal Kasogi. LIV Golf is supported by the financial arm of Saudi Arabia. CLICK HERE TO RECEIVE THE FOX NEWS APPLICATION Dustin Johnson during the first day of the LIV Golf Invitational on June 9, 2022, in St Albans. (Charlie Crowhurst / LIV Golf / Getty Images) The PGA Tour revealed on Thursday that the 17 members who announced that they will participate in the rival golf championship will be suspended. Top golfers such as Dustin Johnson and Kevin Na had already announced their resignations before the announcement of the Tour. Fox News’s Ryan Gaydos contributed to this report. Paulina Dedaj is a Digital Reporter for Fox News and Fox Business. Follow Paulina Dedaj on Twitter at @PaulinaDedaj. If you have a tip, you can email Paulina at [email protected]