PHILADELPHIA (Ticker) -- The Philadelphia 76ers may have to play again without All-Star guard Allen Iverson when they face the Boston Celtics on Tuesday.

Iverson, the league's leading scorer at 30.5 points per game, sprained both thumbs last Friday in a win over the Cleveland Cavaliers and missed Saturday's contest against the Washington Wizards.

"It's a lot better than it was on the day of the Wizards game, but the way I feel right now...I don't think I'll be able to go," Iverson said after sitting out Monday's practice.

Philadelphia can move within one game of Boston for first place in the Atlantic Division and the third seed in the Eastern Conference playoffs. The 76ers trail Cleveland (40-37) by one-half game for seventh place in the East. New Jersey (38-39) is just 1 1/2 games behind Philadelphia.

Without Iverson, the 76ers rallied from a 13-point fourth-quarter deficit before posting their fourth straight victory, a 112-106 triumph over Washington.

Rookie Andre Igoudala, Willie Green and Marc Jackson scored 20 points apiece and were among six players in double figures for Philadelphia, which is 2-5 without Iverson this season.

Although the Celtics lead the Atlantic, they have the sixth-best record in the East.

Antoine Walker returned Saturday for the Celtics, who allowed Vince Carter to score 45 points in a 99-86 loss at New Jersey. Boston coach Doc Rivers was ejected less than two minutes into the game after receiving two technicals for complaining about an offensive foul called against Walker.

Philadelphia, which is looking for its first season sweep of Boston in four years, got 38 points from Iverson in a 97-93 victory over the Celtics on April 3.