Montez went 1-for-4 with a solo home run in Friday's 5-4 win over the Rockies.
Montez launched what proved to be a 426-foot game-winning homer in the top of the ninth inning. The 21-year-old has struck out in 15 of his 35 major-league plate appearances, but he's still hitting .250 with four homers and 10 RBI so far in his short stint with the Mariners.