Atlantic Notes: Brown, Celtics, Tatum, George, Graves

Nets lottery pick Mikel Brown Jr. is expected to make his preseason debut on Wednesday in Miami, per Brian Lewis of The New York Post ( Twitter link ). Brown, who was selected sixth overall in June’s draft, has been sidelined since late September after spraining his left ankle. However, the 20-year-old guard was able to go through full practices over the weekend and participated in another 5-on-5 session on Monday, according to Lewis. The former Louisville star will be out for Monday’s contest vs. Washington but is expected to be ready for Wednesday’s game against the Heat, Lewis adds.