Before you set your PGA DFS lineups on DraftKings or FanDuel for the 2019 WGC-Mexico Championship, you need to hear what Mike McClure has to say. McClure is a DFS pro with nearly $2 million in career winnings, and he's been red-hot on his PGA Tour picks this season. McClure is also a predictive data engineer at SportsLine who uses a powerful prediction model that simulates every tournament 10,000 times, taking factors like statistical trends, past results and current form into account. This allows him to find the best PGA DFS values and create optimal lineups that he shares only over at SportsLine. They're a must-see for any PGA DFS player.

Earlier this month at the Pebble Beach Pro-Am, McClure built his FanDuel and DraftKings lineups around Phil Mickelson. The result? Mickelson fired three rounds of 68 or better on his way to a score of 19-under par and his fifth career victory at Pebble Beach. Anybody who had him in their lineup was well on their way to a huge weekend.

Now, McClure has set his sights on the 2019 WGC-Mexico Championship and has revealed his optimal PGA DFS lineups. You can only see them at SportsLine.

One big name McClure is all over at the WGC-Mexico Championship 2019: Xander Schauffele at $11,100 on FanDuel and $9,100 on DraftKings.

Schauffele is an emerging star who has played extremely well recently, winning two of his last five official PGA Tour starts. He finished on top of the leaderboard at the WGC-HSBC Champions and the Sentry Tournament of Champions, which featured 34 of the 37 golfers who won a PGA event last season. Schauffele's early season success has him ranked 12th on tour in scoring average (69.780), which bodes well for a player who's already racked up 124 birdies in 28 rounds. Lock him in as one of the top overall PGA DFS plays this week.

Another PGA DFS pick he loves: Hideki Matsuyama at $10,900 on FanDuel and $9,000 on DraftKings.

Matsuyama is a long ball hitter who averages 309 yards per drive, which ranks eighth on the PGA Tour. His ability to drive the ball deep into the fairway allows him to use his short irons to approach the green. That's helped him hit over 70 percent of greens in regulation this season, which results in more birdie opportunities. Plus, he's finished T-15 or better in three consecutive starts. 

McClure is also targeting an undervalued player who's primed to blow up this week, giving you a huge return on sites like DraftKings and FanDuel. Picks like these could be the difference between winning your DFS contests or going home with nothing. You absolutely need to see them before locking in any lineups.

So what 2019 WGC-Mexico Championship lineup should you enter on DraftKings or FanDuel? And which undervalued golfer is a must-roster? Visit SportsLine now to see the complete optimal tournament lineups for FanDuel and DraftKings, all from the man who's made nearly $2 million in daily fantasy sports, and find out.