Okert was recalled from Triple-A Salt Lake on Thursday, John Shea of the San Francisco Chronicle reports.
Okert will return to the Giants for the first time since mid-June. In seven appearances for the big league club on the season, he's allowed eight hits and four earned runs across six innings. At Salt Lake, the 24-year-old holds a 3.80 ERA and 1.35 WHIP across 47.1 innings of relief.