(Jonathan Newton/The Washington Post)

Bryce Harper is back. The Nationals were 15-16 in his absence and 25-18 – a 94-win pace — when he started. Jordan Zimmermann (11-3, 2.28 ERA) is on the mound facing Yovani Gallardo (6-7, 4.20 ERA), who is rumored to be on the trading block. The National begin the actual second half of their season, posting a 41-40 record through the first 81 games of the season. The lineups are here. As always, talk about the game here.