The fourth NBA player to recover from COVID-19 is Marcus Smart of the Boston Celtics. He announced on Twitter on Sunday that he has fully recovered from the disease.

"Corona Free as of two days ago. Cleared by Mass Dept of Health. Thanks for everyone's thoughts and prayers and I'm doing the same for everyone that's been effected by this. Stay safe and stay together – apart! Much love!" wrote Smart.

Before the 2019-20 NBA regular season was suspended, Smart played 53 games for the Celtics and averaged 13.5 points, 3.8 rebounds, 4.8 assists and 1.6 steals per game. As a top back-court defender of the league, Smart achieved remarkable improvement with his shooting this season – he could bury 2.4 shots from downtown at a 3-point rate of 34.8 percent.

Each of the four recovered players took different amounts of time to get rid of the virus: 12 days for Christian Wood of the Detroit Pistons, 16 days for Rudy Gobert of the Utah Jazz, 15 days for his teammate Donovan Mitchell and nine days for Smart. Of course their samples are still too small to reach any conclusion.

There are still 13 confirmed cases in the league and they are: four players of the Brooklyn Nets including Kevin Durant, two players of the Los Angeles Lakers, three organization members of the Philadelphia 76ers, one organization member of the Denver Nuggets, one photographer and one scout of the Pistons, and the New York Knicks owner James Dolan.