Doc Rivers had hoped Khris Middleton would be ready for a couple of exhibition games, but he has yet to play five-on-five in practice.

Additionally, the insider noted the Bucks are "cautiously progressing" Middleton towards a return. The sharpshooter didn't appear during preseason and has not been cleared for 5-on-5 practice. This is worrisome for Milwaukee in that Middleton is critical to its championship hopes.

Philadelphia 76ers All-Stars Joel Embiid and Paul George will miss the season opener against Milwaukee and could miss more games as they return from injuries. George has a bone bruise but did not suffer any structural damage when he hyperextended his left knee last week.