WASHINGTON — Bryce Harper returned from an ankle injury to single and score as a pinch-hitter, and Roger Bernadina had a tiebreaking hit in the seventh inning as the Washington Nationals earned a split of the day-night doubleheader with a 5-2 victory Saturday night. Harper injured his ankle in the opener and was lifted after the second inning. The Braves won the first game 4-0 behind Ben Sheets' strong performance.