The Nationals have recalled outfielder Victor Robles, infielder Adrian Sanchez and right-handed pitcher Austin Voth from Triple-A Syracuse and returned from rehab and reinstated right-handed pitcher Erick Fedde and right-handed pitcher Joe Ross from the 60-day disabled list.
The club also selected the contract of right-handed pitcher Kyle McGowin from Triple-A Syracuse and returned from rehab and reinstated left-handed pitcher Tommy Milone and assigned his contract outright to Triple-A Syracuse.
Robles, 21, joins the Nationals for his first Major League assignment of 2018.