Joe West retires as umpire after record 5,460 games; Roberto Ortiz becomes first Puerto Rican to be full-time ump - ESPN
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MLB to host Umpire Prospect Development Camp
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Minor League Umpires To Receive Significant Pay Raise In 2022 — College Baseball, MLB Draft, Prospects - Baseball America
Minor League Umpires To Receive Significant Pay Raise In 2022 — College Baseball, MLB Draft, Prospects - Baseball America
Umpire (baseball) - Wikipedia
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1999-2023 MLB Umpire Rosters, Post Season and All Star Game Crews