Herrera (shoulder) has gone 8-for-19 with a home run, a stolen base and two walks in five games since returning to the Triple-A Memphis lineup Tuesday.
Herrera was held out for a little over a week earlier in the month while recovering from a left shoulder sprain, but he's since been given the green light to return and has looked dialed in at the dish. He's now slashing .345/.457/.448 through eight games in August.