Diaz picked up his first save as he locked down a scoreless ninth with three strikeouts Tuesday against the Red Sox.
Diaz's excellent 1.80 ERA and 49 strikeouts in 25 innings earned him the closer's role in the wake of Steve Cishek's troubles, and he looked great in his first appearance in the job. The only blemish was a walk, and the Red Sox swung and missed at five of his 18 pitches as he worked around the free pass with ease. Diaz's stuff is electric, and it's easy to see why the Mariners were willing to promote him to closer.