Richardson started 33 games for the Sixers this season, averaging 10.5 points, 3.8 rebounds, 1.5 assists and 1.2 steals over 28.4 minutes per game. Richardson will soon undergo surgery on his left knee. Philadelphia 76ers guard Jason Richardson will miss the rest of the season with a knee injury. Philadelphia - a season after landing in the Eastern Conference semifinals - is just 21-27, four games behind the No. 8 playoff spot in the Eastern Conference.