Walker struck out two in a perfect inning to earn the save in Friday's 6-3 win over the Rockies.
Walker has had some missteps in September, allowing six runs over 7.2 innings while converting five of seven save chances. He caused no drama Friday, retiring the side on a tidy 14 pitches (nine strikes). Walker is up to 17 saves this season while adding a 3.98 ERA, 1.23 WHIP and 60:17 K:BB through 61 innings.