Richardson is reportedly done for the year. (Getty Images)

Yahoo Sports reports that Sixers F Jason Richardson will miss the remainder of the season after knee surgery. His recovery time is reportedly 6-9 months. 

Richardson, acquired in the Dwight Howard mega-trade this summer which also sent Andrew Bynum to Philadlphia, had played in 33 games this season, averaging 10.5 points and 3.8 rebounds for the Sixers. He was expected to be a big part of their offense, spacing the floor on the outside with Andrew Bynum on the outside. 

The list of players who have missed significant time with injuries who were involved in the Dwight Howard trade now includes Howard, Bynum, Richardson and Al Harrington. Arron Afflalo is also currently hurt. 

Richardson, 32, has roughly $13 million remaining over two more seasons on his contract.