What is the fine-grained topic of the following text: Bynum was victimized by knee injuries after the Sixers traded for him in the deal that sent Andre Iguodala out of town, and the fact that he couldn’t get on the court (following some setbacks in his rehab that presumably could have been avoided) didn’t exactly endear him to the fan base. Only return the topic.
Bynum's knee injuries and impact on his career with the Sixers