"He's been looking great," Yost said before Friday's game. "Judging by the number of balls he's been putting in the fountains, I'd say he's really close."
Yost said Gordon likely would start his rehab at Double-A Northwest Arkansas which is on a homestand. Triple-A Omaha will be home later in the week, Yost said, and Gordon likely would shift there.
"We figure he would need 20-25 at-bats," Yost said. "If he's doing great and needs less, that works, too."
The Royals have indicated they have not heard when right-hander Yordano Ventura's appeal of a nine-game suspension will be. The Royals will be in New York for games on Tuesday and Wednesday against the Mets -- those Interleague games are sandwiched between two off-days.
It's also possible Ventura might drop his appeal after Friday's game against the Tigers. He would then miss one start and be able to pitch again on June 29 at St. Louis.
Medlen stops by
Right-hander Kris Medlen, on the disabled list recovering from inflammation in the rotator cuff, is back in Kansas City after throwing once for Double-A Northwest Arkansas this week (two innings, no runs, five strikeouts).
Yost said Medlen is going to throw a side session under the watchful eye of pitching coach Dave Eiland this weekend and then go out on another rehab assignment.
Jeffrey Flanagan has covered the Royals since 1991, and for MLB.com since 2015. Follow him on Twitter @FlannyMLB. This story was not subject to the approval of Major League Baseball or its clubs.