NBA star LeBron James confirmed Tuesday that he has been vaccinated against COVID-19 as the league prepares for the start of the 2021-22 season next month. The big picture: Over 90% of NBA players are fully vaccinated, the National Basketball Players Association executive director Michele Roberts said in a statement Tuesday.Get market news worthy of your time with Axios Markets. Subscribe for free.The NBA does not have a vaccine mandate but does have separate protocols in place for vaccinated an