Interesting side note on the Jabari signing:
At the trade deadline, the Celtics had enough tax room to sign one free agent and avoid the tax, unless the Celtics won the title, because then incentives would kick in for Fournier and Brown to put them over the tax. However, Fournier and Brown both have games-played requirements attached to their postseason success incentives, and Fournier's Covid bout has dropped him below the minimum number of games played to reach his incentive, thus affording the C's $500k in extra tax space. Jabari Parker's pro-rated salary is ~$417k. In other words, Fournier's illness may have afforded the Celtics the ability to sign Parker.