Rory McIlroy missed the cut in the US Open at Erin Hills, and he was in no mood to let a tweet from former PGA Tour player Steve Elkington go by without a response.

The Aussie pro golfer didn’t tag McIlroy in the tweet, but said the 2011 US Open champ lacked motivation and must be bored playing golf without Tiger Woods in the field .

Rory is so bored playiing golf…without Tiger the threshold is prolly 4 majors with 100mill in bank

— Steve Elkington (@elkpga) June 17, 2017

McIlroy took a screenshot of his own Wikipedia page that lists all of his achievements, which includes three European Golfer of the Year Awards, two PGA Player of the Year Awards and four majors won, before adding his worth is “more like $200 million.”

More like 200mil… not bad for a "bored" 28 year old… plenty more where that came from. pic.twitter.com/R2nigEaee7

— Rory McIlroy (@McIlroyRory) June 17, 2017

Elkington refused to back down, tweeting he wasn’t surprised McIlroy is a money guy while Jack Nicklaus, who won 18 majors, never once commented on money earned.

McIlroy took the response as an opportunity to question Elkington’s grammar skills.

That's why jack designed 100's of golf courses… and it's knew… mustn't have taught grammar in the 50's….

— Rory McIlroy (@McIlroyRory) June 17, 2017

The social-media exchange came after McIlroy seemed to find his groove at the US Open, only too late. He finished his round at 1-under 71 Friday, but it wasn’t enough to overcome the horrid 78 he posted Thursday.

McIlroy, along with Dustin Johnson and Jason Day, made history in becoming the first top three in the history of the World Golf rankings to all miss a cut at the same major.

McIlroy’s response to Elkington probably made him feel a bit better.