Kiawah Island will host a major championship for the second time starting on Thursday, May 20 when the 2021 PGA Championship tees off at the Ocean Course. After his win the the Wells Fargo, McIlroy is the 11-1 favorite in the latest 2021 PGA Championship odds from William Hill Sportsbook, with Jon Rahm and Justin Thomas right behind him at 14-1.

Before you lock in your 2021 PGA Championship picks, you MUST see who Sal Johnson is backing.

A media legend and consummate golf insider, Johnson knows what it takes to win on the tough major championship courses. He tabbed Brooks Koepka among his contenders before both of his back-to-back PGA Championship wins in 2018 and '19 . In 2020, he backed Dustin Johnson before he came up just shy, tying for the runner-up spot behind Collin Morikawa.

Before the 2018 PGA, Johnson saw Koepka heating up and knew Bellerive was a course he could do well on. "Guy is healthy and on a run," Johnson said before Koepka held off Tiger Woods to win by two strokes.

Before they played Bethpage in 2019, Johnson was firmly behind Koepka again. "I really like him a lot this week," the golf expert told SportsLine, "he is playing well and this is a course he can attack and play well on." This time, he held off Dustin Johnson to win by two for his fourth major title.

The golf expert also has a strong feel for which players have the momentum and how their games fit the courses. Before Hideki Matsuyama won the Masters three weeks ago, Johnson made special mention of Spieth, Xander Schauffele and Will Zalatoris as golfers to watch. He listed Spieth and Schauffele in his top three contenders and had Zalatoris as his top rookie. Zalatoris nearly caught Matsuyama and finished as runner-up, while Spieth and Schauffele tied for third.

He also knows when surging players are poised for a breakthrough. He tabbed Sungjae Im as a top contender before his first Tour win at the Honda Classic last season, then touted Tyrrell Hatton before he got his first tour victory the following week. Anyone who has followed Johnson's advice has cashed in HUGE!  

Now Johnson, the first producer of "Inside the PGA Tour," a longtime ABC Sports golf producer who worked with Jack Nicklaus, Arnold Palmer and Greg Norman, and the founder of the world's top golf stats database, has released his highly confident 2021 PGA Championship picks, and they will surprise you.

Shockingly, the golf expert is fading DeChambeau! He has the distance to dominate a course like this, but Johnson says he won't because the tour's bomber can't play in windy conditions. All 10 of his professional wins have come in near-perfect conditions. He also misses fairways (172nd in driving accuracy), so "this week will be miserable for Bryson," the golf guru told SportsLine.

This week, Johnson is touting a long shot who comes in at well over 50-1 odds! This player has a lot of experience on links-style courses and has been consistently competitive. He could pull off a stunning victory in the 2021 PGA Championship, and anyone who backs this underdog could cash in HUGE.

Who wins the 2021 PGA Championship? Where do Rory McIlroy and Jordan Spieth finish? And which MONSTER long shot is a MUST-BACK? ... Join SportsLine now to see Sal Johnson's full leaderboard and picks for the 2021 PGA Championship, all from the insider who has a strong feel for when these players are in line for a big week!