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Ohio State coach Ryan Day has tested positive for COVID-19, the school announced on Friday.
Day, 41, is in isolation, and assistant head coach/defensive line coach Larry Johnson will serve as interim coach for the Buckeyes' game against Illinois on Saturday.
"At this time the Department of Athletics can confirm an increased number of positive tests this week for the coronavirus. This is in contrast to testing throughout the season, when Ohio State had consistently recorded nearly 0% positivity since Aug. 11. The increased number does not reach the threshold for Ohio State to have to cancel the game this week, according to Big Ten Conference protocols," the Buckeyes said in a statement.