After months of watching the Philadelphia Phillies stumble through the early portion of the 2026 season—misfiring on offense, leaking runs on the mound, and struggling to find consistency—there finally appears to be a pulse in the clubhouse. Since stepping in as interim manager following the dismissal of Rob Thomson, Don Mattingly has wasted little time changing the tone, the urgency, and perhaps most importantly, the belief surrounding this roster.
A major catalyst behind that turnaround has been the return of ace right-hander Zack Wheeler, who has now made two starts since coming off the injured list. Wheeler’s absence dated back to last summer, when he was diagnosed with venous thoracic outlet syndrome—a serious condition that required patience, precision, and a long road back to full strength. His reappearance alone was a morale boost. His performance has been even more encouraging.
Mattingly, who has seen his fair share of elite arms during his time managing in Miami, couldn’t help but draw a bold comparison when discussing Wheeler’s stuff and presence on the mound. Reflecting on his experience with Jacob deGrom, Mattingly acknowledged the lofty standard of that name—while still making it clear just how impressed he’s been with Wheeler.
“I remember watching deGrom pitch in Miami one night and thinking, ‘That’s as good as it gets,’” Mattingly said. “But watching Wheeler now, it’s hard not to feel the same way—or even think he’s right there or better. He’s throwing absolute bullets. Considering everything he went through last year, you’d expect the velocity to keep climbing as the season goes on. And even now, he’s missing bats and pitching like a guy who fully understands how to win.”
Beyond the radar-gun readings, Mattingly emphasized the finer details—areas where Wheeler separates himself and elevates the entire staff. He controls the running game, refuses to give in during tough at-bats, and sets a tone that resonates throughout the dugout.
“He competes on every pitch,” Mattingly added. “He does the little things that matter to this team. Watching him out there, it’s impressive—and you get the sense this is only the beginning. He’s going to keep getting better.”
Naturally, the comparison raised eyebrows. deGrom’s résumé speaks for itself: five All-Star selections, two Cy Young Awards, and a career trajectory that points squarely toward Cooperstown. But Mattingly’s comments were less about diminishing a generational talent and more about reinforcing confidence in his own ace—particularly one working his way back from a major medical hurdle.
For a Phillies team desperate for stability and leadership, Wheeler’s return represents more than just another arm in the rotation. It’s a signal that the season doesn’t have to be lost—and under Mattingly’s steady hand, it might just be turning in the right direction.