The Pac-12 Conference Tuesday announced it will postpone all sports competitions, including college football, through the end of 2020 due to the COVID-19 pandemic.

The decision comes hours after the Big 10 announced its decision to cancel all Fall sports events until at least Spring 2021. The Pac-12 and Big 10 Conferences are part of the Power Five conferences that hold major influence over college sports. It is unclear what the remaining conferences -- Atlantic Coast Conference (ACC) Big-12, and Southeastern Conference-- will follow the Big 10 and Pac-12 conferences in cancelling all Fall sports. 

The Pac-12 conference includes such schools as Arizona, UCLA, USC, and Oregon State. 

“The health, safety and well-being of our student-athletes and all those connected to Pac-12 sports has been our number one priority since the start of this current crisis,” said Pac-12 Commissioner Larry Scott in a statement. “Our student-athletes, fans, staff and all those who love college sports would like to have seen the season played this calendar year as originally planned, and we know how disappointing this is.”

Related: Big Ten Conference Postpones College Football Season

The Big Ten Conference has decided to postpone its fall sports program, including its college football schedule, due to the COVID-19 pandemic, according to published reports.

"The mental and physical health and welfare of our student-athletes has been at the center of every decision we have made regarding the ability to proceed forward,” said Big Ten Commissioner Kevin Warren in a statement. “As time progressed and after hours of discussion with our Big Ten Task Force for Emerging Infectious Diseases and the Big Ten Sports Medicine Committee, it became abundantly clear that there was too much uncertainty regarding potential medical risks to allow our student-athletes to compete this fall."

The Big Ten's decision to postpone the college football season until at least Spring 2021 comes after a morning meeting with the conference’s presidents. The conference, which includes such schools as Ohio State, Michigan and Penn State, becomes the first of the "Power Five" conferences -- which also includes the Atlantic Coast Conference (ACC), Big 12 Conference, Pac-12 Conference, and Southeastern Conference (SEC) -- to postpone the 2020 college football season, striking a major blow to prospects for a college football season this fall. 

Other conferences that have decided to cancel fall sports play include The Mountain West, the Metro Atlantic Athletic Conference and the Mid-American Conference.