The Houston Rockets last night again lost superstar Tracy McGrady to back spasms, the Houston Chronicle is reporting.

While things don't look as bad as they have on previous occasions, it is unknown whether McGrady will miss any games.

"He just hit (the court) and got a little tight," Rockets trainer Keith Jones said. "He fell on that jump shot. When he walked out of here, he was feeling pretty good."

McGrady described his back as "a little tight."

"It's sore," he said. "It's one of those things where I won't know until Tuesday (when the Rockets play the Minnesota Timberwolves). I'm going to get some treatment tomorrow. I'm going on the trip, but the status (of playing) is unknown."