The Mets optioned Fujinami to minor-league camp Saturday, Anthony DiComo of MLB.com reports.
Fujinami gave up three runs on three walks, a hit by pitch and three wild pitches without recording an out in Friday's Grapefruit League game against the Nationals.
Fujinami's (personal) Grapefruit League debut will now take place Thursday versus the Nationals after Wednesday's game against the Astros was rained out, Anthony DiComo of MLB.com reports.
Fujinami (personal) returned to Mets camp this week and is scheduled to appear in relief during Wednesday's Grapefruit League game against the Astros, Tim Healey of Newsday reports.
Fujinami is flying back to Japan on Friday to attend to a family matter, Anthony DiComo of MLB.com reports.
Fujinami agreed to a one-year, $3.35 million contract with the Mets on Friday, Jon Heyman of the New York Post reports.
Fujinami isn't on the Orioles' playoff roster for their ALDS matchup against Texas, Danielle Allentuck of TheBaltimoreBanner.com reports.
Fujinami struck out two in a perfect inning to earn the save in Tuesday's 5-4 extra-inning win over the Angels.
Fujinami was activated by the Orioles on Friday.
The Athletics traded Fujinami to the Orioles on Wednesday in exchange for Easton Lucas, Jon Heyman of the New York Post reports.