Inbox: Harper's cool-off cause for concern?

Bryce Harper smacks a double down the right-field line to score Chris Heisey and give the Nationals a 3-2 lead in the bottom of the 5thSAN FRANCISCO -- The Nationals entered Thursday having won eight of their past 10 games, and after sweeping the Giants this week in San Francisco, they have extended their lead in the National League East to 10 games. So as the team enjoys an off day-during its weeklong stay in the Bay Area, it's time for a Nationals inbox.

We begin with Bryce Harper -- who is serving a three-game suspension for charging the mound and exchanging blows with Giants reliever Hunter Strickland, inciting a benches-clearing fracas -- and whether this short break could help him…