Because the Rockets had a light workout Thursday instead of a full-throttle practice, Tracy McGrady's back got a little bit of rest.

McGrady has been out on three occasions for a total of 13 games this season due to severe back spasms.

He felt some discomfort in Wednesday's 86-84 victory over Milwaukee. He had 22 points and seven rebounds in 38 minutes but was 6-of-19 from the field and missed much of the second quarter.

After the game, McGrady said his inability to get loose was on his mind much of the game.

"It was just one of those days where you roll out of bed and your body is sore and your back is tight," McGrady said. "I just couldn't get loose, and when that happens, it's kind of hard to concentrate on my game because I'm worried about my back.

"Especially after what I've already experienced, having to be carried out on a stretcher."

McGrady collapsed to the floor due to back spasms during a game at Toyota Center on Jan. 8 against Denver and was taken from the arena on a stretcher.