Phil Mickelson's sister shared a hilarious text from their mom begging him not to hit 'bombs' during his PGA Championship winning round

• Phil Mickelson's mom tried to give him advice via text during the final round of his PGA Championship win.
• "Don't hit bombs," Mary Mickelson messaged Phil's sister, Tina, asking her to pass on the message.
• Phil didn't listen to the advice, but he secured a two-stroke victory anyway.

Phil Mickelson became the oldest major winner in golf history Sunday, but even at 50, his mother is still telling him how to play the sport he has won 45 pro tournaments in.

Tina Mickelson, Phil's sister, shared a text message from their mother Mary midway through the final round of his PGA Championship victory on Sunday.

"Tina, txt Phillip and him just to par in," said the message. "Don't hit bombs or activate calves. Just par. They will have to catch him.

"He won't listen to his mother, [so] you txt him. Hurry."

Tina replied by saying she would pass on the message to Phil's brother and caddy, Tim.

"I'll text Tim," she said. "He's the only one Phil is listening to today!"

Mickelson either didn't get his mom's advice, or didn't listen to it, hitting his drive on the penultimate hole of the championship 366 yards, and averaging 313 yards driving distance on the week.

Mickelson's aggressive style famously cost him the US Open title in 2006.

The now 45-time PGA Tour event winner bombed out in the final round at Winged Foot, hitting just two fairways all afternoon.

Despite his difficult day, Mickelson could have still won the tournament with a par on the final hole, however he instead made a double-bogey.

"I am such an idiot," Mickelson said afterward, according to PGA Tour. "This one hurts more than any tournament because I had it won."

At Kiawah Island Golf Resort in South Carolina, on Sunday, Mickelson avoided a similar meltdown, holding off Louis Oosthuizen and Brooks Koepka to become the oldest male player ever to win a major championship.