Pac-12 apologizes after false positive result sidelines 3 Stanford players
"During Pac-12 game-day testing this past Saturday, there were testing protocol errors with respect to a Stanford student-athlete who tested positive for COVID-19. The student-athlete and others who were immediately identified as individuals who would be high-risk contacts if the student-athlete were positive did not play in the game," the conference said in a statement.
"Upon return to campus, Stanford, in communication with the Pac-12 COVID-19 Medical Advisory Committee, administered a daily PCR diagnostic testing cadence that has consistently shown that the student-athlete does not have COVID-19 and is thus cleared to resume practice and competition."
Redshirt quarterback Mills was in line for his first opening-day start after beginning the 2019 campaign on the bench behind K.J. Costello.
The Pac-12 doesn't have protocols for voiding false positives, according to Pac-12 Hotline's Jon Wilner. Instead, schools work with local health officials to set procedures.