Sources - 10 MLB umps retiring, most since '99 - ESPN
Ten MLB Umpires Set To Retire Ahead Of The 2023 Season
Longtime MLB umpire, Minot native Gary Cederstrom to retire
Ten MLB umpires are 'set to retire at the end of the month' - the LARGEST turnover since 1999
Sources - 10 MLB umps retiring, most since '99 - ESPN
Close Call Sports & Umpire Ejection Fantasy League: MLB Call-Up Umpire Hiring Outlook - 2019 Break
MLB Revamps Umpire Staff; 10 Umpires Decide It's Time For Retirement — Inside the Seams
Four longtime MLB umpires set to retire
50 Bold Predictions for the MLB Offseason, News, Scores, Highlights, Stats, and Rumors
Ten MLB umpires are 'set to retire at the end of the month' - the LARGEST turnover since 1999