
The Pittsburgh Pirates face the Arizona Diamondbacks on May 7, 2026, at Chase Field in Phoenix. Mitch Keller will pitch for the Pirates against Zac Gallen of the Diamondbacks.
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Location: Chase Field, Phoenix, AZ Broadcast: 93.7 KDKA The Fan, Sportsnet Pitching Matchup: Mitch Keller (3-1, 2.85 ERA) vs. Zac Gallen (1-2, 4.45 ERA) The Pirates continue their road trip, traveling out west to face the Diamondbacks in a three-game series at Chase Field in Phoenix. Please remember our Game Day thread guidelines.
The game starts at 3:40 p.m. ET on May 7, 2026.
Mitch Keller is starting for the Pirates with a 3-1 record and a 2.85 ERA, while Zac Gallen is starting for the Diamondbacks with a 1-2 record and a 4.45 ERA.
The game is being played at Chase Field in Phoenix, Arizona.


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