Mazur (1-3) took the loss Tuesday against the Mariners, allowing five runs on seven hits and two walks while striking out six over 4.2 innings.

The six strikeouts were a career best for Mazur over his first seven major-league starts, but it was his fourth time giving up four or more runs, and he failed to reach five innings for the fifth time. The Mariners strung together a pair of runs against Mazur in the first two innings before opening up the game with homers in the third and fifth to make it a 5-0 ballgame. The 23-year-old now owns a 7.84 ERA, 1.84 WHIP and 21:19 K:BB in 31 innings. It's unclear if his next start will be in the majors or down in Triple-A, but it will come after the All-Star break.