Diaz struck out two in a perfect ninth inning Thursday against the Rangers for his 13th save.
Diaz had a few rocky outings in August, but he's stabilized things in September so far and has still blown only one save chance since taking over the ninth in Seattle. His fantasy owners have also enjoyed a huge pile of strikeouts -- 73 in 41 innings, good for a 16.02 K/9 that leads all pitchers who've thrown more than 10 innings this year.