Numerous umpires opt out of 2020 MLB season, per report - MLB Daily Dish

Some 10 umpires reportedly to opt out of shortened MLB season - The Boston Globe

Ian Kinsler - Wikipedia

AP Sources says 10 MLB umpires opt-out of 2020 season coronavirus

Timeline of how the COVID-19 pandemic has impacted the 2020 Major League Baseball season

The First Covid Sports Season Is Over. Here Are the Lessons. - WSJ

Will the Shortened Season Stop MLB's Unrelentingly Rising Strikeout Rate? - The Ringer

Several baseball players are opting out of the 2020 MLB Season, citing 'personal health and safety

Red Sox hire Farrell as new manager: MLB

MLB umpire retirements, promotions

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