The Nationals officially recalled infield prospect Anthony Rendon from Triple-A Syracuse Tuesday, but he was not in the lineup for the team's game against the Mets that night.
Rendon took Danny Espinosa's spot on the active roster, though it is not yet known whether Espinosa was placed on the disabled list or optioned.
Rendon appeared in eight games earlier in the season for the Nationals, hitting .240 with a .647 OPS.