Philadelphia Phillies Vs Arizona Diamondbacks Pick and Prediction for Friday, September 19, 2025

By: Ricky Mackenzie Published 09/19/2025, 01:10 AM ET

Phillies Preview

Walker Buehler and the Philadelphia Phillies will head to Chase Field to face Ryne Nelson and the Arizona Diamondbacks in a late-season National League showdown. Get our free MLB Picks all season long! Philadelphia enters with a firm grip on the NL East at 91-62, while Arizona clings to Wild Card hopes, sitting just above .500 at 77-76.

Buehler hasn’t looked like himself in 2025. The veteran righty holds a 5.29 ERA through 117.1 innings, with a 1.54 WHIP and just 87 strikeouts. He’s struggled with both command and velocity, and opponents have been squaring him up consistently. The margin for error is small, especially on the road.

Diamondbacks Preview

Nelson, meanwhile, has delivered one of the most underrated seasons in the league. His 3.34 ERA and 1.06 WHIP across 143 innings speak to his consistency and ability to work efficiently. He mixes speeds well and limits damage with runners on base. Against a lineup like Philadelphia’s, his poise will be tested.

The Diamondbacks have been playing inspired baseball over the past few weeks, while Philadelphia’s focus is shifting toward October. The Phillies still have the deeper lineup, but their pitching has been shakier down the stretch. This could be a tight, high-leverage game if both starters keep it clean early.

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Diamondbacks vs Phillies Pick

Arizona is fighting for its postseason life, and that urgency might be the difference. If Nelson can continue his steady pace and the bullpen holds, the Diamondbacks could edge out a close one. Take the Diamondbacks to squeeze out the win on home field. Final Score Prediction, Arizona Diamondbacks win 5-4.

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