Sanger Unified School District spokesperson Cary Catalano says there are currently six confirmed cases within the team. The entire varsity football team is now in quarantine as a precaution.
It is not known if Thursday's game against Clovis East will be rescheduled.
Catalano says there is no further risk or impact to any of the classrooms.
Multiple Valley high schools have already dealt with COVID-related issues early in the season, including Selma High School, Yosemite High School, Fresno High and Madera High School.
RELATED: Some Valley high schools already forced to cancel football games
This is a developing story. Stay with Action News for updates.