Gallo (shoulder) is on track to be activated from the injured list for the weekend series in Philadelphia, Mark Zuckerman of MASNSports.com reports.

Gallo (shoulder) went 0-for-4 with a walk, a run and an RBI on Tuesday in a rehab game for Triple-A Syracuse.

Gallo (shoulder) will begin a rehab assignment with Low-A Fredericksburg on Saturday, Andrew Golden of The Washington Post reports.

The Nationals placed Gallo on the 10-day injured list Saturday with a sprained AC joint in his left shoulder, Bobby Blanco of MASNSports.com reports.

Nationals manager Dave Martinez said Wednesday that Gallo will play right field while Lane Thomas (knee) is sidelined, Mark Zuckerman of MASNSports.com reports.

Gallo is out of the lineup for Friday's game against the Astros.

Gallo went 1-for-3 with a walk and a solo home run in Wednesday's loss to the Giants.

Gallo (wrist) will play first base and bat cleanup in Wednesday's game in San Francisco, Mark Zuckerman of MASNSports.com reports.

Nationals manager Dave Martinez said after Tuesday's 5-3 win over the Giants that X-rays on Gallo's left wrist returned negative after the 30-year-old was hit by a pitch in his final plate appearance, Mark Zuckerman of MASNSports.com reports.

Gallo went 0-for-3 with a walk and a stolen base in Sunday's win over the Phillies.