David Lee (illness) was on the sidelines for Monday's game against the Nets, Steve Bulpett of the Boston Herald reports.

Lee (illness) was on the sidelines for Monday's game against the Nets, Steve Bulpett of the Boston Herald reports.

Analysis:

Lee failed to practice Sunday due to the illness, so his absence from Monday's game wasn't overly surprising. He's expected to be fine for the start of the regular season, and could even reenter the Celtics' starting lineup for one or both of their final two preseason games, scheduled for Thursday and Friday.