MLB Mock Draft 2021: Red Sox get Vandy's Jack Leiter at No. 4; Pirates take high school shortstop at No. 1

MLB Draft 2021: Dates, top prospects, draft order, mock drafts – NBC Sports Boston

Mock Draft: Who will be selected tonight?

MLB Draft First Round: Red Sox Take Marcelo Mayer

Taking the pulse of 5 clubs atop the MLB Draft: Beat writers on first-round picks, playoff windows, 5-year outlooks - The Athletic

2021 MLB Mock Draft - V 6.0 — Prospects Live

2021 MLB Mock Draft: Red Sox take Vanderbilt star with fourth pick – NBC Sports Boston

2023 MLB Draft: The Top 400 Prospects - Future Stars Series

MLB Draft 2021: Scattered thoughts on the Boston Red Sox draft class, led by Marcelo Mayer - Over the Monster

North Side Bound's 2023 MLB Mock Draft 3.0: Draft Day

MLB draft: Analyzing every first-round pick - Sports Illustrated

Top 2021 MLB Draft prospects