"Some soft toss, some tee work," Black said. "Probably no on-field activity for a couple days after, but he's getting closer."
When Gyorko's injury occurred, he had the lowest batting average (.162) of all qualified hitters in the Majors. Alexi Amarista and Irving Falu have filled in during his absence, though Brooks Conrad will be making his Padres debut Friday at second base after hitting 18 homers in the Pacific Coast League this season.
Next week, first baseman Yonder Alonso will swing a bat for the first time since succumbing to right wrist tendinitis and heading to the DL on June 19. He won't return to the lineup until after the All-Star break and won't travel with the team when it finishes off the first half with trips to Colorado and Los Angeles next week.
"He'll work here and get treatment with our guys who stay back," Black said before Friday's series opener with the Giants at Petco Park. "But he's feeling better."
Tommy Medica and Jake Goebbert have shared time at first base in Alonso's absence. Since Alonso was placed on the DL, Medica has reached base in 11 of 12 games while Goebbert is batting .357 in 14 at-bats, albeit with no extra-base hits.
Will Laws is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.