The Sixers are off tonight before they host the New York Knicks on Saturday.
It's a welcome rest for first-time All-Star Jrue Holiday (see story). Holiday is averaging a team-high 38.1 minutes this season.
Here is a look at the notable matchups around the NBA tonight:
Celtics at Hawks, 7:30 p.m.
The Boston Celtics travel to Atlanta looking to avoid their sixth straight loss.
The Celtics sit two games under .500 and are seven games back of the division-leading Knicks after a loss to them last night, despite a league-leading fourth triple-double by Rajon Rondo. The Sixers are now three games out of the final playoff spot in the East thanks to Boston's skid.
The Hawks may see the return of Al Horford tonight, who has missed two of the past four games with a tight hamstring. Horford is the Hawks' second-leading scorer with 15.6 points per game.
The teams last met on Jan. 5 when the Celtics came back from a 15-point deficit at the half to win 89-81. The Hawks were doomed by a rough third quarter in which they were outscored 33-9 by the Celtics.
The Celtics held Horford to six points on 2-of-8 shooting, while Paul Pierce had 26 points and nine rebounds.
Nets at Grizzlies, 8 p.m.
The Brooklyn Nets continue a four-game road trip tonight as they face the Memphis Grizzlies.
Brooklyn has won 12 of 14 games since P.J. Carlesimo replaced Avery Johnson as head coach. The Nets have won their last three games despite averaging 91 points on 42.2 percent shooting and 17.3 turnovers in that span.
The Grizzlies have won three of their past four games, allowing 81.5 points and 40 percent shooting.
The two teams last met on Feb. 15 when Memphis avoided a third straight loss to the Nets with a 105-100 victory.
Warriors at Bulls, 8 p.m.
The Golden State Warriors look to extend their three-game winning streak as they face the Chicago Bulls Friday night.
Both teams' success has been a surprise this season. The Bulls currently lead their division even though Derrick Rose has yet to return from a torn ACL, while the Warriors are in fifth place in the Western Conference.
On Thursday, both teams learned they would have representatives at the All-Star game -- Luol Deng and Joakim Noah for Chicago and David Lee for Golden State. Lee is the first Warrior to be selected to an All-Star Game since Latrell Sprewell in 1997. Stephen Curry was left off the All-Star roster despite averaging 20.9 points per game, which is eighth-best in the league.
Curry enters Friday's game vs. the Bulls averaging 21.8 points and 7.5 assists in his last four games against Chicago, with the Warriors having won three of those matchups.