Antuna cleared waivers and was outrighted to Triple-A Rochester on Thursday, Mark Zuckerman of MASNSports.com reports.
The Nationals promoted Antuna from High-A Wilmington to Double-A Harrisburg on Tuesday.
Antuna is 5-for-13 (.385) with four walks and three strikeouts through four games at High-A Wilmington.
The Nationals optioned Antuna to Triple-A Rochester on Tuesday, Mark Zuckerman of MASNSports.com reports.
The Nationals optioned Antuna to Triple-A Rochester on Sunday, Jessica Camerato of MLB.com reports.
Antuna's Brittany Ghiroli of The Athletic by the Nationals on Friday.
Antuna was added to the Nationals' 60-player roster pool Friday, Mark Zuckerman of MASNSports.com reports.
Antuna (elbow) was healthy enough to participate in instructs in the Dominican Republic over the offseason, Keith Law of The Athletic reports.
Antuna is recovering from Tommy John surgery, Byron Kerr of MASNSports.com reports.
Antuna will begin the season with Low-A Hagerstown, Mike Rosenbaum of MLB.com reports.