The Astros struggling rotation took a surprising blow Tuesday as doctors had to perform surgery on Kyle Weiland’s pitching shoulder to clean out an infection.

Weiland went on the disabled list four days ago with right shoulder bursitis. But team doctors determined the pain in his shoulder was the result of an infection. He had arthroscopic surgery Tuesday at The Methodist Hospital.

The team has not placed a timetable on Weiland’s recovery, but manager Brad Mills says he could be out “a considerable amount of time.”
The 25 year old right hander won the final rotation spot with an outstanding spring training performance. But he struggled in three regular season starts, going 0-3 with a 6.62 ERA.

The Astros have not said who will replace Weiland in the rotation next week.