Diaz gave up a solo homer and a single in the ninth inning Wednesday against Detroit, which was good enough for his 12th save.
Thanks to the Mariners' three-run lead, Diaz was able to be aggressive and shake off the solo homer Ian Kinsler hit off him. Having given up only two runs with an 18:4 K:BB over his last 14.1 innings, Diaz looks safe in the closer role for Seattle.