The Royals signed Fernandez to a minor-league contract Friday.
Fernandez signed with the NPB's Chiba Lotte Marines on Saturday.
Fernandez was sent outright to Triple-A Buffalo on Tuesday.
Fernandez was designated for assignment by the Blue Jays on Tuesday.
Fernandez was claimed off waivers by the Blue Jays from the Yankees on Thursday.
Fernandez was designated for assignment by the Yankees on Wednesday.
The Yankees claimed Fernandez off waivers from the Pirates on Friday.
Fernandez was designated for assignment by the Pirates on Tuesday.
Fernandez was recalled by the Pirates on Saturday, Justice delos Santos of MLB.com reports.
The Pirates claimed Fernandez off waivers from the Cardinals on Wednesday and optioned him to Triple-A Indianapolis, Rob Biertempfel of The Athletic reports.