McIlroy took a screenshot of his own Wikipedia page that lists all of his achievements that includes three European Golfer of the Year Awards, two PGA Player of the Year Awards and four majors won before adding that his worth is "more like $200 million".
Elkington was watching the U.S. Open before he made a backhanded compliment about McIlroy. Why he chose to voice his opinion in that way is anyone's guess, but McIlroy didn't wait long to respond.
It meant that for the first time since World Golf Rankings came into play in 1986, the top three all failed to make the cut at a major.
Eagles coach predicts tough match with Bafana Bafana
The South African national team landed at the airport in Uyo at 12:38pm on Thursday, June 8, 2017. Baxter said stifling Nigeria in the opening 20 minutes could be crucial for Bafana.
The spat continued with Elkington insisting he "new" McIlroy was interested only in money, unlike 18-time Major champion Jack Nicklaus.
McIlroy birdied four of his last six holes at Erin Hills to improve seven shots on his opening 78, but still missed the cut by four shots.
The Northern Irishman won the Open Championship and US PGA in 2014, meaning he needs only to win the Masters to become the sixth player to complete a career grand slam.
He would have expected the criticism to come in from the usual sources but one surprise was a freaky Twitter rant from an Australian professional golfer named Steve Elkington.