ESPN.com reports: The season has been a major disappointment for Tracy McGrady and the Houston Rockets. It might have just gotten worse. The forward told ESPN.com’s Stephen A. Smith on Tuesday that his troublesome left knee will end his season and that he will undergo microfracture surgery. McGrady’s name had come up earlier Tuesday in reported trade discussions between the Rockets and New Jersey Nets. The Nets were leery of McGrady’s contract and health in discussions involving Nets forward Vince Carter.