Acquired: Drafted in the third round of the 2012 MLB First-Year Player Draft (SEA).
Most Recent Stats at Time of Debut
|CURRENT SEASON STATS: 3-3 with a 2.21 ERA in 16 games, six starts, at Jackson (Double-A), striking out 54 while walking seven and allowing 32 hits in 40.2 IP. He limited opposing hitters to a .212 average.|
Info & MLB Debut Date
Contract purchased from Jackson June 4, when RHP Cody Martin was sent down.
MLB Debut Date: 6/6/2016
|June 6, in a 3-1 loss to the Indians. The second of three pitchers, he came on to start the seventh inning in relief of starter James Paxton and needed just 11 pitches, 10 of them strikes, to retire the side. He got his first big league batter, Chris Gimenez, to ground out to third base, struck out rookie Tyler Naquin swinging, and finished things off by getting Rajai Davis to also ground out to third.|
|The third player with the last name of Diaz to make his big league debut over the first two months of the season (along with St. Louis’ Aledmys and Cincinnati’s Dayan), this Diaz is arguably the Mariners’ top pitching prospect, bringing a career .220 average against into his big league debut, striking out 409 batters while walking just 130 and scattering 208 hits in 386.1 IP, and skipping Triple-A en route to his major league debut. Working mostly as a starter early on, the Mariners have shifted him to the bullpen, at least for now to best maximize his ceiling and to utilize his double-plus fastball, and he has thrived with that role shift. In 2015, he was 7-10 with a 3.82 ERA in 27 starts between Bakersfield (High A) and Jackson, fanning 145 in 141.1 IP while walking 46 and allowing 123 hits. That included a 1.70 ERA in seven starts at Bakersfield in the very hitter-friendly California League.|
|Contributor Nick J. Faleris got to see Diaz with Jackson in late April, and had this to say about him.|