Arizona Diamondbacks pitcher Merrill Kelly breaks down his spring training outing against the Seattle Mariners on March 6, 2025.

The Arizona Diamondbacks take on the Seattle Mariners at Salt River Fields at 6:40 PM MST. Both teams are participating in a split squad day, with the D-backs sending the rest of their squad to play the Guardians at Goodyear Ballpark.

Diamondbacks RHP Merrill Kelly continues to feel on track for the regular season, and an increase in his slider use was a positive on Thursday.

The Arizona Diamondbacks will travel to Peoria on Sunday for their third Cactus League matchup, this time against the Seattle Mariners as the "away" team. The first pitch will be at 1:10 p.m. Arizona time. Sunday's game will be broadcast on ESPN 620, and televised by the Mariners' broadcast team as a Free Game of the Day on MLB.TV.

Diamondbacks 11, Mariners 4. What stood out on Thursday at Salt River Fields: RF Corbin Carroll is nearing a return: In the team’s workout before the game, RF Corbin Carroll too

Bloomquist, who spent parts of nine years with the M's, is now the head baseball coach at Arizona State University. He joined the Refuse to Lose podcast this week to talk about his career, his time in Seattle and much more.

ESPN MLB insider Jeff Passan wrote a list of 10 players scouts are buzzing about this spring, which included Seattle Mariners closer Andrés Muñoz.

The Mariners lost to the Royals 9-6 in spring training action Wednesday, but not before Julio Rodriguez blasted his first two home runs of the spring.

Mitch Garver had a solid day and the Mariners exploded for six runs in the second inning Sunday to earn an 11-5 win over the Diamondbacks in Cactus League play.

The newest candidate for the Seattle Mariners' bullpen had a 3.59 ERA over 52 2/3 innings pitched with Houston last season.