The Seattle Times · Sep 30, 2017
Mariners announce Hisashi Iwakuma underwent arthroscopic shoulder surgery
Seattle Mariners starting pitcher Hisashi Iwakuma delivers in the first inning of the team’s baseball game against the Houston Astros, Tuesday, April 4, 2017, in Houston. (AP Photo/Eric Christian Smith)ANAHEIM, Calif. — A few weeks ago, Hisashi Iwakuma admitted he had structural damage in his right shoulder, which had kept him out most of the 2017 season. While he wouldn’t specify what the issue was, he did say he was looking at several options to remedy the problem.