SAN ANTONIO (AP) — Terrell Owens’ back pain is just spasms and isn’t considered serious.

An MRI done Monday, when Owens missed the Dallas Cowboys’ practice for the second straight day, showed no problems.

The Cowboys had the exam done because the 33-year-old receiver still had muscle stiffness a day after being treated by team trainers. T.O. got more treatment Monday and wasn’t on the field for either of the team’s two practice sessions.

Even before the test results came back, coach Wade Phillips didn't sound concerned.

“We feel sure that he just has back spasms, but we don’t want to take any chances,” Phillips said after the first practice. “There’s no alarm, but we wanted to make sure.”

Receivers coach Ray Sherman said he didn’t know if Owens would be at practice Tuesday, when the Cowboys will have their last full workout in the Alamodome. The team will break camp after a short walkthrough Wednesday.

Before missing Sunday, Owens had taken part in four straight workouts since being given time off by Phillips to rest his sore legs. Owens went through drills at full speed without any apparent problems during workouts, including two Saturday.

While the team practiced Sunday, Owens was with the trainers doing whirlpool therapy and work on a stationary bike.

“I thought he would be a little better today, because he did all the stuff our trainers wanted him to do,” Phillips said. “But it wasn’t better.”

Still, Phillips hasn’t ruled out the possibility of Owens playing in the preseason opener Thursday night against Indianapolis.

“No, he wants to play,” Phillips said.

Owens missed about half of his first training camp with the Cowboys last year, including the first three preseason games, because of a hamstring problem.