Walker (5-3) allowed one run on six hits and a walk while striking out six over five innings in Wednesday's 2-1 win over the Tigers.
He was held to 82 pitches (56 strikes) in his first start since coming off the DL, but Walker's blister issues didn't reoccur and he didn't seem to miss a beat after being out of the rotation since May 19. The 24-year-old now has a 3.32 ERA on the season, but he could have a hard time maintaining it in his next start Wednesday at Coors Field.