"We know he hyperextended it when he slipped going across the bag".
Harper walking up the stairs provided some hope, and an MRI revealed what the Washington Nationals hope is season-saving news.
Dan Kolko of MASN said the Nationals didn't put an official timetable on the slugger's return but granted it "doesn't seem like a season-ender".
San Francisco Giants' Gorkys Hernandez, right, steals second against Washington Nationals shortstop Wilmer Difo (1) during the fourth inning of the first baseball game of a split doubleheader, Sunday, Aug. 13, 2017, in Washington.
Due to a rain delay, the 7:05 p.m. EST start time didn't occur until 10:06 p.m. EST.
In his first and only plate appearance against Samardzija, Harper roped a ball up the first base line that rookie Ryder Jones snagged with a dive toward the foul line.
DIAMONDBACKS 6, CUBS 2 Patrick Corbin pitched 6 2/3 scoreless innings, David Peralta hit an inside-the-park home run and host Arizona beat Chicago, cutting the Cubs' NL Central lead over St. Louis to a percentage point. He was carried off the field without putting weight on his left leg.
Edwin Jackson gave up just one run in six innings to earn a 3-1 win over the Giants on Saturday. The Washington Nationals have tabbed veteran right hander Max Scherzer as the starter against the San Francisco Giants.