Heston gave up six earned runs on seven hits and one walk over 2.1 innings in Tuesday's 8-5 Cactus League loss to the A's.

EDGE Analysis

Heston surrendered five doubles among his seven hits and came unraveled in the third, when the A's touched him up for six runs overall. The right-hander is expected to start the season at Triple-A Tacoma and figures to be a prime candidate for a call-up at some point in the regular season when the Mariners are down a man in their rotation.