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The Diamondbacks faced the Phillies on their most recent road trip, sweeping the Phillies at Citizen's Bank Park. Now both teams head to Chase Field, where the Diamondbacks are 26-9. In the first game of the series, it will be Patrick Corbin taking the mound for the Dbacks. Corbin against the Phillies went 6 IP, allowed 4 runs (2 earned) to get the win as the Diamondbacks came from behind in the 7th to win 5-4. Corbin has always been a better pitcher at Chase Field than on the road, which is why they moved him back a day.
On the other side, the Phillies will send Mark Leiter, nephew of former MLB pitcher Al Leiter. Leiter has made 12 appearances in the Phillies bullpen and is scheduled to make his first career start. He's more of a pitch to contact guy, using a 4-seamer and split combination. The stuff isn't particularly exceptional, but did generate a lot of ground balls in his limited sample of action. His repertoire includes a curveball, slider, and change-up, so he'll throw the kitchen sink if necessary. He doesn't have great command, with more walks than strikeouts, so the Dbacks should be able to slap him up and down the ballpark.
The Phillies are basically a pushover, but they're not going to try to give away games at this point even though they know they're not a competitive MLB roster. It's a series I expect the Diamondbacks to win at least 3 of 4 at worst to kick off the homestand then 3 against the Cardinals and then 3 against the Rockies.