Before setting your MLB DFS lineups on daily Fantasy sites like DraftKings and FanDuel on Friday, you NEED to hear what Mike McClure has to say. McClure is a DFS pro with nearly $2 million in career winnings.

When it comes to MLB, McClure is at his best. Recognized in the book "Fantasy Football (and Baseball) for Smart People: How to Turn Your Hobby into a Fortune," McClure's proprietary MLB DFS projection model simulates each game 10,000 times, taking factors such as matchups and recent results into account. This allows him to find the best values on every site.

He got off to a HOT start in 2019, producing lineups on SportsLine that have returned as much as 30x. He also finished in the top 1 percent of tournaments four times and the top 0.1 percent of tournaments twice in the first half of the season. He cashed huge in three consecutive tournaments in mid-June, which included a top 2 percent finish when his DraftKings lineup generated a whopping 185.9 points. He also had an optimal lineup on FanDuel that cashed 8x for followers the Friday before the All-Star break.

And on Thursday, he was all over Cleveland Indians shortstop Francisco Lindor on both sites. The result: Lindor went 3-for-5 with a two double and two runs scored -- returning huge results for MLB DFS players. Anyone who has followed McClure has seen some huge returns. Now, McClure has set his sights on Friday's slates.

One of McClure's top MLB DFS picks for Friday is Minnesota Twins shortstop Jorge Polanco at $3,500 on FanDuel and $4,800 on DraftKings. At .299, Polanco has 38 doubles, six triples and 22 home runs this season. Another facet of McClure's optimal MLB DFS strategy Friday is rostering Polanco's teammate and Minnesota Twins third baseman Miguel Sano ($3,600 on FanDuel, $4,900 on DraftKings). Sano went off on the Royals on Thursday night, going 2-for-3 with a double, a home run and two RBI. 

McClure is also targeting a player that is undervalued in DFS who is set to explode for huge numbers on Friday. The stars are aligning for him to return tournament-winning value and he comes at a price that won't break the bank. This pick could be the difference between cashing in big or going home with nothing.

What are the optimal MLB DFS lineups for Friday? And which undervalued player is a must-roster?... Join SportsLine now to see DFS pro Mike McClure's complete optimal tournament lineups for FanDuel and DraftKings, and cash in BIG on MLB DFS!