HOUSTON (July 29, 2012) -- Houston Texans receiver Andre Johnson left practice with a pulled groin muscle.

Coach Gary Kubiak says Johnson's injury appears minor, but it may still force Johnson to miss "a few" practices.

Johnson missed nine games last season with hamstring injuries and was sidelined from the first organized team activities in the spring after arthroscopic surgery on his left knee. The five-time Pro Bowl selection started Sunday morning's practice and pulled up during a one-on-one drill.

He watched the rest of the outdoor half of the workout with a towel wrapped around his head, then went to Reliant Stadium when the practice moved indoors.