Von Miller urged his social media followers to take coronavirus "seriously" after the Denver Broncos' star linebacker was diagnosed with COVID-19.

Shortly after Los Angeles Rams center Brian Allen was revealed as the first known active NFL player to have contracted the virus, it was confirmed that Miller had also tested positive.

The Broncos announced eight-time Pro Bowler Miller, who was the MVP of Super Bowl 50, is in self-isolation at home and is being cared for by team doctors.

In a post on his Instagram story, Miller thanked those who have offered their support.

"Thanks for the love everybody," he wrote.

"That's dope! AF! I'm going to do whatever I have to do to get thru this!

"Take this seriously. It's definitely FOR REAL".

Rams offensive lineman Allen revealed the details of his battle against coronavirus in a Q&A on The Athletic in which he said he was unable to smell anything, including smelling salts.

"I tested positive three weeks ago then I actually tested positive again last week," he said.

"I won't have to go take the test again though because I've been symptom-free from the flu for a period of time now."

On how long doctors had told him it would be before he gets his sense of taste and smell back, Allen added: "Initially they told me it may not come back for six-to-eight months but everything is just a guess at this point.

"I have not gotten it as bad as other people have. It is ruining a lot of lives.

"But for me it is just a flu and the loss of smell and taste. I'm lucky."