Toolshed: 40-man protection preview
Houston Astros Lose Four Prospects, Gain Four in 2022 Rule 5 Draft at MLB Winter Meetings - Sports Illustrated Inside The Astros
Forrest Whitley, Freudis Nova added to Astros' 40-man roster
World Series 2019: How the Astros built their AL champion roster through trades, free agency and the draft
Houston Astros: Corey Julks' first career home run is worth the wait
Previewing The 2019 40-Man Roster Deadline — College Baseball, MLB Draft, Prospects - Baseball America
Washington Nationals Top 31 Prospects
2022 Houston Astros season - Wikipedia
Twins protect three pitchers from Rule 5 draft - Twinkie Town
Diamondbacks trade for power reliever, add 4 others to 40-man roster
New York Yankees Set 40-Man Roster, Protect Minor League Players from Rule 5 Draft - Fastball