Nats' GM cancels workout over lack of COVID-19 test results, says season 'at risk' - WTOP News
Cincinnati Reds games postponed Saturday, Sunday after COVID-19 test
Guardians, White Sox game postponed May 11
Giants player tests positive for coronavirus; at least 2 games vs. Padres postponed
MLB postpones Reds games with Pirates after positive coronavirus test
Reds players await results of COVID-19 tests, won't play Monday - The Boston Globe
Reds-Pirates Weekend Baseball Postponed By Positive COVID-19 Player – Deadline
Reds games postponed after player tests positive for COVID-19
Entire Cubs-Cardinals series postponed after eighth St Louis player tests positive, MLB