The 37-year-old Hasegawa pitched in 46 games last season for
Seattle, going 1-3 with a 4.19 ERA. In November, the Mariners
turned down a $3.1 million option to bring him back for a fourth
"I had some offers from other teams, but have decided to
retire," Hasegawa said. "Unless I'm in perfect shape mentally and
physically, I wouldn't be able to be an important part of a team."
The 2003 All-Star had a 45-43 career record with 33 saves over
nine seasons in the majors with the Anaheim Angels and Mariners.