Diamondbacks' Matt Koch: Scheduled to start Tuesday's game

Koch is scheduled to make his first major league start Tuesday against the Nationals.

Analysis:

Koch has pitched extremely well out of the Diamondbacks' bullpen during his first cup of coffee in the majors, so manager Chip Hale decided it was time to see how he'd fare in a starting situation. Koch will face the NL East champion Nationals, although it's worth noting that their lineup could be shorthanded if Bryce Harper (thumb) and Daniel Murphy (leg) are unable to play.