But don't take our word it. Just ask Alex Noren, who is going viral for his absolutely mangled mitts at the PGA Championship this weekend. If you're squeamish, now's the time to look away.

Those blisters would send most of us to urgent care, but not the Swede, who will tee it up again on Sunday hoping to scratch and claw his way into the top 50 at Aronimink. Although Noren's hands may look like sandpaper, clearly his true grit lies somewhere inside.

According to stats guru Justin Ray, the mark for most players at or within four of the lead entering the final round of the PGA Championship is 18 in 1993. Well, we should say was the record, because as Sunday at Aronimink begins there are currently 22 players at or within four shots of the lead. While Jon Rahm at 4 under and Rory McIlroy, Patrick Reed and Xander Schauffele sit at 3, don't sleep on the group at 2 under including Cam Smith, Justin Rose and Joaquin Niemann.

Many golf fans—and a handful of golfers—are wondering that as we head into Sunday at Aronimink. This year's PGA has one of the most bunched leaderboards entering a final round in major championship history. And the good folks at Data Golf have crunched the numbers to assess the chances of those chasing leader Alex Smalley. And they're telling us there's a chance . . . if you're starting at even par or better.

And as our nation's first capital, it's perhaps fitting to consider Philly's ties to the earliest days of golf in this country, especially as the U.S. celebrates the 250-year anniversary of the founding of our country. As it turns out, one of the founding fathers, Benjamin Rush, who was a proud Philadelphian, was one of the first Americans to write about golf. His classic line in 1772, talking about golf and exercise, saying that we “would live 10 years the longer for using this exercise once or twice a week.” This video from Philly’s Museum of the American Revolution has some more on golf’s early links to the city.

it was always going to be the PGA Championship. The 29-year-old dropped this tasty nugget late Saturday at Aronimink that nicely tied everything together. He holds a two-shot lead over five men heading into the final round.

“I obviously dreamed of this as a kid, and it's funny, it's the Wanamaker Trophy, and when I was in college [at Duke], I stayed in the Wanamaker dorm for three years. So my parents and I have been joking that maybe this would be a tournament that I would win just because of that kind of fact. That's just kind of something that we've joked about even before I made it out here.”

It’s no longer a joking matter. The dude who lived in the Wanamaker for three years is 18 holes away from hoisting the Wanamaker.

The PGA Championship 54-hole leader is looking to win a major as his first PGA Tour win. Two shots clear of the field, Smalley is the 10th player since 1995 to hold an outright lead heading into the final round of a major without a tour win (for what it’s worth, he has never held a 54-hole lead in a tour event, either). The track record for the nine other players in that position? Not promising. Only one, Louis Oosthuizen in the 2010 Open Championship, went on to win on Sunday.

The current PGA Championship leader plays the ball almost in the middle of his stance.

This is unusual—most players put the ball position inside their lead heel with their driver—but Rai puts his more back because he says it helps him rotate more on his downswing.

Quirky, but it works.

Rai has both one of the lowest launch angles (7.47 degrees) and highest spin rates (2,820 RPMs) in golf. He's also hit more fairways than anybody else on tour the past three years.

Check out his full swing sequence right here.

The German parred all 18 holes on Friday at Aronimink, taking a page right out of Nick Faldo's playbook (the Englishman made 18 in a row to win his first major at the 1987 British Open). Prior to the second round, however, Jaeger had also parred the last six holes of his first round, and he began his third round Saturday with five more in a row. That was a streak of 29 (!) consecutive pars. If he wins, this will forever be known as the P(ar)GA Championship. 

Fortunately for Jaeger, the streak finally ended at the gettable par-4 sixth, where his first birdie in 30 holes has pulled him into a tie for first. What an incredible run to keep him firmly in the mix.