The Seattle Mariners (33-31) and the Arizona Diamondbacks (31-34) open a 3-game series at Chase Field in Phoenix Monday.

The Diamondbacks are on the outside looking in at the National League playoff picture, raising questions about their trade ...

Arizona Diamondbacks reliever Justin Martinez exited in the ninth inning against the Seattle Mariners with an apparent injury ...

DBacks' Merrill Kelly gets the ball to open the Mariners series and is coming off seven scoreless innings on one hit at ...

After his team won on a walk-off grand slam, Torey Lovullo was solemn. Justin Martinez left the game with what he described ...

A ninth inning comeback was ultimately for naught in the Seattle Mariners' 11-inning, 8-4 loss to the Arizona Diamondbacks on Monday at Chase Field. Josh Naylor ...

Arizona Diamondbacks reliever Justin Martinez exited in the ninth inning against the Seattle Mariners on Monday night because ...

The next homestand for the Arizona Diamondbacks features a pair of postseason contenders, the Seattle Mariners and San Diego ...

An MLB umpire went down with an apparent head injury during Saturday's MLB game between the Arizona Diamondbacks and the ...

Josh Naylor hit a game-ending grand slam in the 11th inning and the Arizona Diamondbacks beat the Seattle Mariners 8-4 on Monday night after losing closer Justin Martinez with two outs in the ninth ...

The Seattle Mariners currently sit outside of the playoff picture, having just dropped five in a row to the Orioles and the ...

The Arizona Diamondbacks announced the death of former outfielder Jason Conti, part of the team's first MLB draft class, on ...