Marcus Smart has announced he tested positive for COVID-19.

Smart was tested because of "exposure to a known positive case." 

The Boston Celtics said Smart was not exhibiting any symptoms and has been in isolation for several days.

I was tested 5 days ago and the results came back tonight, which were positive. Ive been self quarantined since the test, thank goodness. COVID-19 must be taken w the highest of seriousness. I know it’s a #1 priority for our nations health experts, & we must get more testing ASAP pic.twitter.com/xkijb9wlKV

— marcus smart (@smart_MS3) March 19, 2020