Manager John Gibbons said Estrada (back) is expected to start Saturday against the Marlins, Mike Wilner of Sportsnet 590 The Fan reports.
Estrada has been dealing with back soreness for a couple of weeks now, but the veteran right-hander is apparently healthy enough to pitch through the issue. He compiled a 6.15 ERA across five starts in August, so he'll look to turn things around against a lackluster Marlins team in his first start of September.