Paul Skenes’ latest start raised more questions than the box score shows. He walked four, struggled to command his arsenal and now owns a 5.20 ERA over his last 15 starts. Alex Stumpf examines the reduced fastball life, inconsistent breaking pitches and mechanical changes keeping Skenes from looking like the Pirates’ ace. With workload questions surrounding Jared Jones, Braxton Ashcraft and Bubba Chandler, Pittsburgh’s rotation could determine its playoff fate.

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