Jarrod Dyson, who was the Royals' 2006 50th-round draft pick and played a key role on their 2014-15 World Series teams, was back at Kauffman Stadium for the first time as a visitor.
The Royals traded him to the Mariners in January.
"It's kind of weird being on the other side, in the visitor's locker room, but coming back is home for me, you know," Dyson said. "The only team I've ever been with. And I had some good memories here, some fun times."
Dyson tipped his batting helmet to a standing ovation before singling in the second inning.