Barring a complete meltdown, the Washington Nationals and Houston Astros, should win their divisions. The two meet on Tuesday in Houston to kick off a three-game interleague set.

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Washington’s Tanner Roark (9-8, 4.70 ERA) took a loss in his last outing, as the Nationals fell 3-2 at home to the Los Angeles Angels. Roark allowed three runs on four hits over seven innings, striking out three and walking two. The 30-year-old righty has met Houston just once, taking a win back in June 2014. He gave up a run on seven hits over five innings. According the the pros at Bovada, Roark is 6-2 in 11 road starts with a 4.19 ERA.

Houston’s Charlie Morton (10-5, 3.69 ERA) got the win in a 9-5 home victory over Arizona, giving up a run on three hits over 6.1 innings, while striking out nine and walking four. Morton has eight starts against the Nationals, going 2-4 with an ERA of 6.27. At home this season, the 33-year-old right-hander is 7-2 in 12 starts with a 3.45 ERA.

These two haven’t met since June 2014. Washington has won nine of their last 10 meetings with Houston, with six falling under the posted total.