The Nationals begin a four-game series Thursday at first-place Arizona, which took two of three from Washington in late April at Nationals Park.
Here are three things to look for in the series:
Batting order
Will Bryce Harper continue to bat leadoff?
Harper got the night off Wednesday as the Nationals lost 2-1 in San Diego, just the second loss in 10 games for Washington.
Manager Dave Martinez put Harper in the leadoff spot on May 1 and the Nationals won four straight games and seven of eight. Harper hit four homers in a stretch from May 1 through Saturday.