Mayer, Leiter, Rocker among top prospects for MLB draft
Storylines, MLB Draft prospects to watch in 2022 college baseball
Mayer, Leiter, Rocker among top prospects for MLB draft - The San Diego Union-Tribune
Detroit Tigers draft watch: Marcelo Mayer's swing packs power
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MLB Draft 2021: Marcelo Mayer and Five Other Prospects to Watch - The New York Times
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Mayer, Leiter, Rocker among top prospects for MLB draft – Saratogian