Whenever a player tests positive for COVID-19, the NFL conducts contact tracing and determines who (if anyone) qualifies as a high-risk close contact. If there are any Ravens who do, after the Dez Bryant positive result, they would have to be pulled from this game as well.

One of the NFL's major criteria for being considered a high-risk close contact is whether you were exposed to the infected individual while not wearing a mask.

Here's the ESPN news story on what happened tonight. Per @DanGrazianoESPN, Bryant returned an inconclusive test this morning. Re-run was inconclusive. Then a point of care test was positive. NFL identified no high-risk close contacts, and the game began. http://espn.com/nfl/story/_/id/30480237/baltimore-ravens-wr-dez-bryant-says-tested-positive-just-kickoff

Seeing a lot of questions about close contacts, especially given photos of Dez Bryant hugging and interacting with Cowboys people before the game. Here's how "close contact" is defined in the NFL/NFLPA policy. Note that it does not include "brief interactions."

A remaining question: Why was Dez Bryant allowed to warm up if his previous tests were "inconclusive?" Per the NFL/NFLPA protocol, an "inconclusive" test is supposed to be treated the same as a "positive" test until it is resolved one way or the other.

Got an answer as to why Dez Bryant was allowed to warm up. Per an NFL source, his inconclusive test did not come back until after he had already taken the field. As soon as the test did come back, he was pulled and given a point of care PCR test that returned positive.