The NFL is postponing its primetime Thanksgiving day game between the Baltimore Ravens and Pittsburgh Steelers due to a COVID-19 outbreak, the league announced Wednesday.

Why it matters: It's the first time the league has had to scrap a game since October, as the U.S. copes with another surge in coronavirus infections heading into the holidays.

There's a new tradition in sports: finding out you've been traded on social media.

The latest: Ricky Rubio found out he'd been traded by the Suns last week while scrolling Twitter at his home in Barcelona, he told The Athletic.

• Kelly Oubre found out he'd been dealt after a workout at the Suns' facility.
• "I just see people looking at me with like a glare in their eyes," he said. "I was like, hmm. And then Cheick Diallo was like, 'Hey, my boy, check Twitter.'"

The Tampa Bay Buccaneers and Los Angeles Rams' NFL game was officiated by an all-Black crew Monday night.

Why it matters: It's the first time in NFL history this has happened. It comes "55 years after Burl Toler became the first Black official in the NFL," the Rams noted in a statement. NFL football operations executive vice president Troy Vincent said in a statement, "This historic Week 11 crew is a testament to the countless and immeasurable contributions of Black officials to the game, their exemplary performance, and to the power of inclusion that is the hallmark of this great game."

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The NFL announced Wednesday that all 32 teams must follow the league's "intensive" coronavirus restrictions for the rest of the season starting this Saturday.

Why it matters: The decision comes after the Las Vegas Raiders placed seven more players on its coronavirus reserve list, bringing the total to 11, according to ESPN.

The Miami Marlins have hired Kim Ng as their general manager, making her the first female and second Asian American general manager in Major League Baseball, the team announced on Friday.

The big picture: According to AP, Ng, 51, started her career in Major League Baseball as an intern and has over 20 years of experience in professional baseball.

The NBA's Toronto Raptors would love to play next season at home, but with travel between the U.S. and Canada currently restricted — including a 14-day quarantine — they're weighing a temporary U.S. residence.

The state of play: The NBA season is expected to start on Dec. 22, and a surge in positive cases in the U.S. means travel restrictions could remain for a while.

Despite the pandemic nearly upending the 2020 season, MLB's long-term economic health appears strong.

33 pro sports venues were open as polling locations on Election Day, offering voters a more socially-distanced option to cast their ballots.

Venues by state: California (8), Texas (5), D.C. (3), Arizona (2), Indiana (2), New York (2), Maryland (2), Missouri (1), Colorado (1), Washington (1), Wisconsin (1), Pennsylvania (1), New Jersey (1), Ohio (1), Illinois (1), Utah (1).

All North American sports leagues face enormous uncertainty heading into 2021, but the NHL's reliance on ticket sales and cross-border travel puts it in a particularly tough spot.

The state of play: While leagues like the NBA and NFL make most of their revenue from media rights, the NHL is a much more gate-driven league.

After initially indicating that the 2020-21 season would likely start in January or February, NBA officials are now pushing for a 72-game season starting Dec. 22.

The state of play: There are obvious financial benefits to an earlier start, including the preservation of the league's marquee Christmas games and not having to compete with football again, let alone the 2021 Tokyo Olympics.