Bryce Harper injured his knee rounding first base Saturday night and had to be helped off the field. His leg buckled, he went airborne and fell to the ground as his helmet went flying.
Harper remained on the ground for a few minutes as the ballpark went silent.
There has been no update on Harper's injury. The Nationals won 3-1. Major League Baseball, not the Nationals, decided if and when the game would be played because the Giants don't return to Washington this season. The base may have been slippery following a three-hour rain delay.
Rookie Andrew Stevenson came on to play center field in the second and Brian Goodwin moved from center to right.
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Bryce Harper left in pain Saturday.
Harper is under contract through next season and can be a free agent in the winter of 2018. Howard signed a minors deal with the Braves at the start of the 2017 season, but was released by the team in May after an 11-game stint in Triple-A Gwinnett.
Brewers get Walker • The Milwaukee Brewers agreed to acquire veteran second baseman Neil Walker from the Mets. Walker, sidelined for six weeks this season with a torn hamstring, is batting.264 with 10 homers and 36 RBIs. And former Dodgers manager Tommy Lasorda fractured his right wrist in a fall.