Seattle ? Texas Rangers catcher Ivan Rodriguez has a herniated disc in his lower back and will miss 4-to-6 weeks.

Rodriguez, who did not make the team’s trip to Seattle, had an MRI test Friday in Arlington, Texas, and the results were announced Saturday.

The Rangers will place him on the 15-day disabled list once they return home. The move likely will happen Monday or Tuesday, the team said.

Rodriguez was out of the lineup for the fifth straight game Saturday and remained in Arlington to undergo treatment. He was scratched from the lineup April 15 because of lower back pain.

Backup Bill Haselman is catching in Rodriguez’s place. Rodriguez is hitting .222 (10-for-45) in 12 games this season.

“It hurts,” first baseman Rafael Palmeiro said. “He is one of the best players in the game. We’ve got Haselman who can step in, but we’re going to miss Pudge.”