UFC star Conor McGregor disses Tiger Woods

June 6 (UPI) -- Kicking them while they're down is done frequently in the Octagon, but Conor McGregor recently did it to Tiger Woods in the real world.

McGregor took to Instagram Sunday to make one of his signature fashion statements. But this time he wasn't just showing off some luxury apparel, he had a message for the PGA star.

"A lion would never act the bollox. But a tiger wood," McGregor wrote as the caption for his photo. The picture featured McGregor's left leg, sporting a shoe and sock featuring matching tigers.

Woods, 41, was arrested on Memorial Day in Jupiter, Fla. He was charged with DUI.

He released a statement after the incident saying that he took "full responsibility" for his actions. He has maintained that no alcohol was involved in the incident and that "what happened was an unexpected reaction to prescribed medications."

Woods has a scheduled arraignment hearing on July 5.

Back in August, golfer Rory McIlroy and singer Niall Horan were photographed hanging out in Las Vegas with McGregor. McGregor is also a boxing fan.

"He turned a skeptic into a believer last night...@TheNotoriousMMA is the real deal. Talk is cheap but that left hand will make him," McIlroy tweeted in 2015 after McGregor's win against Jose Aldo.

McGregor also has a lot going on in his public and private life. The lightweight titleholder welcomed his son Conor Jack McGregor Jr. on May 5. He is also set for a rumored bout against retired boxing champion Floyd Mayweather Jr.

"The Notorious" (21-3-0) was originally scheduled to battle "Money" on Sept. 16, but the date has since been nixed. ESPN reported that both camps prefer the fight in the fall of 2017.

Mayweather is 49-0, but hasn't fought since September 2015. McGregor's last bout was in November against Eddie Alvarez.