Zac Gallen Returns to a Tired Room
Avatar photo Victor Hale
09.09.2026

Zac Gallen Returns to a Tired Room

Zac Gallen returns to Arizona’s rotation Wednesday with unusually valuable cargo: innings.

The Diamondbacks used seven pitchers for the second consecutive night Tuesday, when Corbin Burnes’ first start in 464 days lasted three innings before another extra-inning game stretched Arizona’s staff through the 11th. Gallen now makes his first start since July 7 after recovering from elbow inflammation.

Kansas City counters with Daniel Lynch IV, whose return to starting has produced a very different question.

Bookmaker Sportsbook‘s opening line has Arizona at -111, Kansas City at -102, and the total at 8.5. My pick is Arizona -111, with the Diamondbacks winning 5-3.

Zac Gallen Returns With More Than Outs

Arizona’s bullpen workload makes Gallen’s return valuable, regardless of how well he pitches.

The Diamondbacks have played 21 innings in two nights, using seven pitchers in each game. Tuesday required Blake Walston, Andrew Saalfrank, Brandyn Garcia, Justin Martinez, and others after Burnes’ abbreviated return.

Gallen’s condition therefore matters differently on Wednesday. Arizona doesn’t need vintage Gallen immediately. Five or six competitive innings would prevent Torey Lovullo from having to construct another game almost entirely from relief appearances.

Before going on the injured list, Gallen was 3-9 with a 6.34 ERA. The return is encouraging; assuming the old version immediately would be something else entirely.

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Daniel Lynch IV works from the mound during a previous professional Kansas City Royals game.

Lynch Keeps Finding the First Inning

Lynch’s season ERA of 3.51 hides the more relevant number. He carried a 1.96 ERA as a reliever before Kansas City moved him into the rotation. Across his first six starts, he produced a 6.97 ERA.

His latest start explained part of the problem. Toronto scored five runs across Lynch’s first two innings before he retired 10 consecutive hitters. Lynch said afterward that his stuff had not changed significantly; his attitude had. He felt his body moving slowly early, then pitched with greater intent. His stated objective for the next start was to begin with the same reliever mentality and “fully let it rip from pitch one.”

Arizona now gets the first opportunity to test whether that adjustment survived four days.

The MLB Playoffs Betting Guide provides additional context for September games where current pitcher roles can matter more than full-season numbers.

Right-Handed Bats Find Lynch’s Problem

Lynch’s difficulties since entering the rotation have been particularly pronounced against right-handed hitters, and Arizona can present him with plenty of them.

Tuesday’s lineup included Gabriel Moreno, Nolan Arenado, Tommy Troy and Tim Tawa from the right side, with switch-hitters Ketel Marte, Geraldo Perdomo and Ildemaro Vargas available around them. The final lineup was not yet posted at the time of research.

Tawa is especially difficult to ignore after homering in the ninth Tuesday and driving in another run in the 10th. Marte has also hit safely in all seven games since returning from injury.

Lynch’s first inning suddenly has rather a lot of interested observers.

Minus 111 Leaves Zac Gallen Room

The price does not require Gallen to resemble his best seasons immediately.

It asks whether his return, Arizona’s right-handed options against Lynch, and the Royals starter’s unresolved early-inning problem collectively justify a near pick’em. They do.

Betting Lean

Arizona Diamondbacks moneyline -111.

Prediction: Diamondbacks 5, Royals 3.

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Data Snapshot

Team / StarterArizona DiamondbacksKansas City Royals
Record78-6864-82
Starting pitcherZac GallenDaniel Lynch IV
ThrowsRightLeft
Season record3-94-5
Season ERA6.343.51
Strikeouts6146
Previous MLB appearanceJuly 7September 4
Key current contextReturning from elbow inflammationConverted from relief to rotation
Game DetailInformation
DateSeptember 9, 2026
First pitch7:40 p.m. ET / 4:40 p.m. PT
VenueKauffman Stadium
LocationKansas City, Missouri
Arizona’s previous two gamesBoth extra innings
Arizona pitchers used Tuesday7

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