The NCAA is examining all options for the upcoming 68-team men's basketball tournament, including the possibility of holding games without fans, as the coronavirus continues to spread across the U.S.

"If you can think of it, it's something that we've gone through an analysis around," NCAA Chief Operating Officer Donald Remy said in an interview. "We've contingency planned for all circumstances."

The massive tournament — slated to start in two weeks, with games in 14 U.S. cities —- accounts for more than 80 percent of the NCAA's annual revenue. Over the weekend, an advocacy group for college athletes suggested holding the event without an audience present, and as the virus fears mount, some have openly wondered if March Madness games will be held at all.