The Nationals activated Ryan Zimmerman from the 15-day disabled list on Tuesday and optioned Tyler Moore to Triple-A Syracuse as the corresponding move.
Zimmerman is in the starting lineup at left field as the Nats take on the Philadelphia Phillies in the first of a three-game series. Once a Gold Glove third baseman, Zimmerman will be playing in the outfield for the first time in his MLB career.
Zimmerman joins the Nationals after four rehab appearances with Single-A Potomac. He has been out since April 12 when he fractured his right thumb while sliding into second base in a game against the Braves.
Zimmerman went 5-for-14 with the P-Nats with a double and three RBI. He played the first game at designated hitter, then three games in left field. He played nine innings in his final tune-up on Monday night.
Zimmerman missed 44 games after playing just 10 to start the season. He rejoins the Nationals with a .354 average, two home runs and six RBI on the year.
Moore, 27, leaves the Nationals with a .214 average through 34 games. He was called up for his latest stint on May 11 to replace first baseman Adam LaRoche.