Mariners' Chris Heston: Promoted to majors
Heston was recalled from Triple-A Tacoma on Sunday, NBC Sports Bay Area's Alex Pavlovic reports.
Analysis:
Heston was in competition for the No. 5 spot in the Mariners' rotation during spring training, but was ultimately sent to the minors near the end of camp. The 29-year-old has posted a 3.18 ERA over 17 innings in the Tacoma rotation, but will join the Mariners as a bullpen arm.