Zac Gallen gave up one run in one inning on Monday, serving up a solo homer but retiring the other three batters he faced, striking out two.

Diamondbacks manager Torey Lovullo says he has a tough call to make regarding his Opening Day starter against the Chicago Cubs.

Diamondbacks right-hander Zac Gallen appears to line up to start on Opening Day, though Torey Lovullo says not to make any assumptions.

All the star players were out there for the Diamondbacks, including Eugenio Suarez, Corbin Burnes, Zac Gallen, Corbin Carroll, Randal Grichuk, and many more, in addition to GM Mike Hazen and manager Torey Lovullo.

Zac Gallen strikes out two in one inning of work in his Spring Training debut. More From This Game; Arizona Diamondbacks; Zac Gallen; Spring Training; Cactus League; highlight; in

Arizona Diamondbacks pitcher Zac Gallen, center front, gets high-fives in the dugout after completing the first inning of a spring training baseball game against the Cleveland Guardians, . 24,

When the Arizona Diamondbacks play the Cleveland Guardians at Salt River Fields on Monday at 1:10 p.m., long-term Ace Zac Gallen will be on the mound for his first outing of the Cactus League. There is no broadcast of the game.

Gallen allowed one run on one hit and struck out two over one inning in Monday's spring game against Cleveland. Gallen threw 15 pitches (nine for strikes), including a changeup that Gabriel Arias sent back over the fence in left-center field.

Arizona Diamondbacks' Zac Gallen pitched one inning in the club's Cactus League game against the Cleveland Guardians on Feb. 24, 2025.

Zac Gallen gave up one run in one inning on Monday, serving up a solo homer but retiring the other three batters he faced, striking out two.

Zac Gallen is approaching his first dose of MLB free agency, and the Diamondbacks pitcher said it's definitely been on his mind as spring training has begun.

The D-backs long time Ace knocked some rust off and worked on his delivery, Corbin Carroll made his presence known.