COVID is wreaking havoc in the sports world again

• The NFL has games on five days this week due to a surge in positive tests. It has also changed its protocols in a big way: fully vaccinated, asymptomatic players are no longer subject to weekly testing.
• The NBA has postponed five games and returned to elevated protocols as COVID sweeps through the league. Teams are so short-handed that they've been given the green light to sign replacement players.
• The NHL postponed nine games over the weekend and suspended 12 games involving cross-border travel until after Christmas. There's also a growing belief that NHL players won't compete in Beijing.
• College basketball: Dozens of men's and women's programs have temporarily shut down, including three ranked men's teams: UCLA, Seton Hall and Ohio State. Multiple games were canceled.

Looking ahead: With border closures in Asia, Christmas on hold in Europe, and Omicron now detected in 89 countries, the Beijing Games — now just 46 days away — could realistically be delayed or disrupted.

Go deeper: COVID isn't finished with us