Marcelo Mayer, SS, 4th pick of the 2021 MLB Draft

Over the course of the summer showcase circuit, a pair of high school shortstops separated themselves as the top two prep position players in the country. The first is Jordan Lawlar from Texas and the second is Mayer, who hails from the same Eastlake High School that has produced first-rounders Adrian Gonzalez, and more recently, Keoni Cavaco. Mayer has performed like someone who belonged near the top of the Draft this spring. He has average or above tools across the board, starting with a plus feel to hit from the left side of the plate. He has an advanced approach and knowledge of the strike zone to go with elite bat-to-ball skills and a pure stroke. Long and lean, there’s a lot of raw power for him to grow into, with some scouts seeing a Corey Seager-like offensive profile if it all comes together. While not a burner -- some scouts have a tick above-average run grades, some have fringy ones -- no one doubts Mayer will be able to stay at shortstop for a long time. He has easy actions, plus hands and footwork and an arm that plays plus. All of it plays up because of his instincts and aptitude, in a Brandon Crawford kind of way. He’s committed to Southern Cal, but as a potential first-round pick, the odds of him setting foot on campus are slim.