No. 10 seed VCU's sudden departure from the 2021 NCAA Tournament stemmed from three players testing positive for COVID-19 in a 48-hour period, sources told CBS Sports. It is the first time since last summer that VCU had any players test positive for COVID-19, a source said, and it resulted in a no-contest being called in its scheduled game against No. 7 seed Oregon ahead of Saturday night's tipoff.

Internally, VCU is wondering whether the site of the Atlantic 10 Tournament title game is responsible for the program finding itself out of the NCAA Tournament. Sources told CBS Sports that VCU, St. Bonaventure and the entire officiating crew for the event all stayed at the Dayton Marriott -- directly across the street from UD Arena, site of the title game in Dayton, Ohio. 

"I'm shocked St. Bonaventure doesn't have any positive cases," one source said. 

No. 9 seed St. Bonaventure played Saturday, falling 76-61 to No. 8 seed LSU in the first round. 

College basketball official Roger Ayers worked the Atlantic 10 Tournament title game between St. Bonaventure and VCU. He subsequently tested positive for COVID-19 after arriving in Indianapolis for the NCAA Tournament. Ayers is currently battling the coronavirus and told CBS Sports he has struggled all week.