The Hokkaido Nippon-Ham Fighters have re-signed Reyes to a one-year contract, agent Edwin Dominguez Alvarez reports.
Reyes has signed with the Hokkaido Nippon-Ham Fighters of Japan's Nippon Professional Baseball.
The Nationals reinstated Reyes (undisclosed) from the injured list Friday and released him, Jesse Dougherty of The Washington Post reports.
Reyes signed a minor-league contract with the Nationals on Thursday, Talk Nats reports.
Reyes elected free agency Thursday.
Reyes was designated for assignment by the Royals on Monday.
The Royals optioned Reyes to Triple-A Omaha prior to Tuesday's 11-7 loss to the Orioles.
Reyes is not in the starting lineup Friday versus the Twins, Anne Rogers of MLB.com reports.
Reyes is out of the lineup for Wednesday's game against the Diamondbacks.
Reyes (personal) has been reinstated from paternity list by the Royals on Monday.