It turns out Lefty's not too bad as a righty.

Phil Mickelson showed off his cannon for a right arm over the weekend at the Waste Management Phoenix Open. During the par-3 16th hole, Mickelson took a break from the tournament to toss a few footballs into the crowd. And wait until you see his throws.

The 43-year-old, who has won five major championships, is a natural righty and it shows here. He chucks the footballs into the stands with impressive strength and precision.

Check it out:

The balls were Arizona State footballs and signed by Mickelson. Mickelson played golf at Arizona State and his brother is the school's men's golf coach.

While this looks like a lot of fun, Mickelson says he won't be breaking out the pigskin on the course anytime soon.

"I think it's the last time I'm going to do that, because mentally I was thinking about throwing it a couple holes prior," Mickelson said. "It took me out of my element. I hit the worst shot imaginable on that 16th hole, and then I followed with four other terrible ones. It was just some of the worst shots imaginable.

"I just lost focus, and I think a lot of it was due to the fact that I have never done something like that on the 16th hole. I thought it was going to be fun, and it kind of took away my focus."

Mickelson, the tournament's defending champ, finished the day with a 72 and dropped to 3-under par.