As the sports world remains frozen due to the coronavirus pandemic, the NBA reportedly isn't optimistic it will be able to restart and finish its season.

ESPN's Brian Windhorst went on "SportsCenter" on Friday and gave an update on the league's current line of thinking and the realistic possibility that basketball won't return until next season.

"It's been a bad week," Windhorst said in regards to the feeling the season might not be salvageable. "I think there was optimism about progress a week ago, and some things that have happened this week have turned it south about what could happen. A big factor was what happened in China, where they halted the return of their league and one of the big reasons was they really believed that if they just tested the players' temperature all the time that it would. The Chinese are finding that asymptomatic carriers are causing maybe a second wave in that country. They have just slammed the breaks on sports.

"The talks between the players union and the league this week -- I've talked to both sides of this issue -- and it is clear the NBA is angling to set up a deal that enables them to shut the season down. Now, they don't have to do that yet, and the way they are negotiating, they are leaving themselves an option either way. But they are not having talks about how to restart the league, they are having financial talks about what would happen if the season shuts down and I think there's a significant amount of pessimism right now."

The NBA reportedly had been looking at the idea of playing the playoffs in Las Vegas while keeping the players in a bubble without fans, but public health officials have poked holes in that idea.

Windhorst noted the NBA is walking a fine line in finishing this season without impacting the 2020-21 season, and the widespread availability of fast, reliable tests will be needed to finish this season.

"They do have runway here," Windhorst said. "I do think that they could go into August or September to finish this season. But I'm not sure they feel confident about that right now. A big factor is testing. We just don't have the testing. At some point, not only does there have to be a test that is quick and can tell if a player is healthy enough to enter the game, you have to know that you have the tests available so that you aren't taking them away from people who need them."

The NBA suspended its season March 11 after Utah Jazz center Rudy Gobert tested positive for the coronavirus. Gobert and teammate Donovan Mitchell both have fully recovered from their bouts with COVID-19.

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Not finishing the NBA season would be a tough pill to swallow for the league, its players and its fans, but as we focus on social distancing and flattening the curve, it might be the only option.

As of April 3, there were more than 270,000 cases of coronavirus in the United States and more than 7,000 deaths, according to the Centers for Disease Control and NBC News reporting.