University of Iowa football players parents protest outside Big Ten headquarters in Rosemont, Ill., Friday, Aug. 21, 2020. Parents of Big Ten football players, upset over the process that led to the postponement of the season until spring, held a protest near the conference's Chicago-area headquarters Friday while an attorney in Nebraska demanded commissioner Kevin Warren turn over material illustrating how the decision was made. (Stacey Wescott/Chicago Tribune via AP)

FILE - In this June 4, 2019, file photo, Minnesota Vikings chief operating officer Kevin Warren talks to reporters after being named Big Ten Conference Commissioner during a news conference in Rosemont, Ill. After the Power Five conference commissioners met Sunday, Aug. 9, 2020, to discuss mounting concern about whether a college football season can be played in a pandemic, players took to social media to urge leaders to let them play.(AP Photo/Charles Rex Arbogast, File)