Call this the biggest assist of the year so far for Marcus Smart ... the NBA player is donating his blood plasma after beating coronavirus to try to help others recover from the disease as well.
Some COVID-19 experts believe by taking the plasma of a person who's beaten the virus and giving it to currently infected people can help them get better.
The science, officials say, is the antibodies in the plasma can help sick people develop similar coronavirus fighters quicker as well.
The problem? Doctors say finding donors has been tough .