The Royals signed Harris to a minor-league contract Friday, Ari Alexander of 7 News Boston reports. The deal includes an invitation to spring training.
Harris missed the first half of the 2026 season with a forearm injury before returning to post a 2.55 ERA and 27:16 K:BB over 24.2 innings with Triple-A Worcester in the Red Sox organization. The 33-year-old reliever's lone big-league experience came in 2023 with the Nationals, when he held a 5.12 ERA in 16 outings.