Historically, first base has been where Fantasy players find their home runs. But with more teams willing to play lesser defenders around the diamond, you'll find some of the hulking sluggers who used to be relegated to the lesser corner all over the diamond now. That's been great for leveling the playing field in Fantasy, but it's made first base a somewhat underwhelming position.

Oh, sure, there are plenty of home runs to be found here, and the runs and RBI that come with it. But there aren't many players you feel confident can be big power sources and be helpful in batting average. Beyond the top five in the consensus rankings, you start to have to make tradeoffs -- do you pay up for Pete Alonso's home run upside, knowing he might hit .240, or do you aim for someone like Vladimir Guerrero, with huge all-around upside but significant question marks, or maybe an aging star like Paul Goldschmidt, who could help you in average while sacrificing some pop.

Those are all valuable players, but you really have to squint to find truly elite potential production once you get past the first few options. What first base does have is a deep bench of potent hitters, with 30-homer potential well into the teens and 20s in the rankings. If you can't grab one of those potential superstars early, waiting out first base is never a terrible idea. It might be how I approach it in every draft.

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Age (on opening day): 22Where he played in 2019: Rookie, low Class A, high Class A2019 minors: .278 (205 AB), 6 HR, 17 2B, .832 OPS, 30 BB, 38 K When a true first baseman -- and a right hand-hitting one at that -- goes third overall, as Vaughn did in 2019, the bat better play, and by all accounts, his will, putting him in line to be the next young stud welcomed to the White Sox lineup. Power and plate discipline are his game, earning him the Golden Spikes Award for best college player in 2018.Scott's 2021 Fantasy impact: midseason hopeful

Age (on opening day): 21Where he played in 2019: low Class A, high Class A2019 minors: .256 (429 AB), 20 HR, 26 2B, .830 OPS, 58 BB, 118 K The scouting reports for Casas always read like Cody Bellinger for me, with the natural leverage of his left-handed swing pointing to a massive power ceiling that hasn't fully manifested yet. He has a setup like Joey Votto, a follow-through like Freddie Freeman and glowing reports out of the alternate training site that suggests big things are coming.Scott's 2021 Fantasy impact: cup of coffee

Age (on opening day): 25Where he played in 2019: Triple-A2019 minors: .239 (472 AB), 27 HR, .816 OPS, 73 BB, 139 K2020 majors: .263 (80 AB), 8 HR, .959 OPS, 10 BB, 39 K Dalbec was a big find in 2020 for Rotisserie players looking to make up ground in the home run category, delivering on his 70-grade power right away and establishing himself as the Red Sox's new first baseman in the process. Still, he's an all-or-nothing hitter who may come closer to the "nothing" side with increased exposure.Scott's 2021 Fantasy impact: pencil him in

Age (on opening day): 24Where he played in 2019: high Class A, Double-A2019 minors: .270 (455 AB), 27 HR, 33 2B, .851 OPS, 33 BB, 91 K2020 majors: .154 (39 AB), 2 2B, .400 OPS, 2 BB, 12 K Diaz's first audition for the Marlins' long-term first base job went poorly, but with his profile, there aren't many mysteries left to sort out. He should put the ball over the fence at a good rate and doesn't look like he'll have major strikeout issues, but as narrow as the path to first base is, he can't afford too many misfires. Scott's 2021 Fantasy impact: midseason hopeful

So which 2021 Fantasy baseball sleepers should you snatch in your draft? And which undervalued first baseman can help you win a championship? Visit SportsLine now to get Fantasy baseball rankings for every single position, all from the model that called Will Smith's huge breakout last season, and find out.