By Ty Anderson, 985TheSportsHub.com

The Boston Celtics will be without two of their rookies, 2019 first-round pick Romeo Langford and 7-foot-6 center Tacko Fall, for tonight's season-opening contest against the Philadelphia 76ers.

Langford's absence will due to some lingering knee pain the 19-year-old is dealing with as a result of a fall in Boston's preseason finale against the Cavaliers. Langford, drafted with the 14th overall pick, appeared in two preseason games for the Celtics, and comes to the C's after averaging 16.7 points and 5.4 rebounds per game in 31 games with the Hoosiers last year.

Fall, meanwhile, is still in the NBA concussion protocol after suffering an apparent concussion in a practice last week. Fall, who is with the Celtics on a two-way deal after a strong Summer League and training camp, participated in practice earlier this week, but was a 'minimal' participant in contact drills, ruling him out of tonight's contest.

In other health news, Gordon Hayward appears to be over the illness he was dealing with, while second-year center Robert Williams III has been cleared out of the concussion protocol and will be good to go for tonight's rivalry matchup.