Diaz picked up the save Sunday against Milwaukee, striking out two during a perfect ninth inning.
Diaz needed only 14 pitches to retire Willy Adames, Garrett Mitchell and Joey Ortiz in order. The 27-year-old reliever has converted on 23 of his 25 save chances this season and has a 4.17 ERA with a 40:25 K:BB across 41 innings.