The Washington Nationals have called up shortstop Trea Turner from Triple-A Syracuse and placed first baseman/outfielder Tyler Moore on the 15-day disabled list with a left ankle sprain.
Turner, a highly touted 22-year-old prospect, is batting .322 with eight home runs and 54 RBI in 116 games between Double-A and Triple-A this season. He'll be making his major-league debut.
Turner was acquired from San Diego on June 14 to complete a three-team deal made in December that brought rookie right-hander Joe Ross to the Nationals and sent outfielder Steven Souza Jr. to Tampa Bay.
Nationals shortstop Ian Desmond is hitting .227 with 15 home runs and 45 RBI this season.
Moore goes on the DL retroactive to Wednesday. Right-handed reliever Aaron Barrett (right elbow sprain) was transferred to the 60-day DL to make room for Turner on the 40-man roster.