Emerson Hancock made his first start of the season on Sunday night in a national spotlight against the Cleveland Guardians. It could hardly have been more perfect. Hancock put up stats that hadn't been done by a Seattle Mariners player since Felix Hernandez.

The Mariners entered Spring Training with one of their most complete rosters in recent memory, without many question marks and no real voids. So, perhaps it’s fitting that the club unveiled its 26-man contingent for Opening Day one day early.

We know now the 26 players who will be suiting up for the Seattle Mariners on opening day at T-Mobile Park on Thursday night.

On Saturday evening, the Seattle Mariners will play the Chicago Cubs for their latest spring training game.The Mariners have two more exhibition games (after Saturday) before their Opening Day showdown with the Cleveland Guardians on March 26 in Seattle.

SEATTLE (AP) — The Seattle Mariners placed right-handed pitcher Carlos Vargas on the 15-day injured list Friday with a right lat strain and recalled right-handed pitcher Cole Wilcox from Triple-A Tacoma.

Who will make the Mariners' roster for opening day? While it has mostly been set all spring, there could be a few surprises in store. Here are our final projections.

The Seattle Mariners are debuting their Negro League-inspired throwbacks for Sunday's game against the Cleveland Guardians.

Mariners place JP Crawford and Bryce Miller on IL before Opening Day 2026 vs. Guardians, reshaping Seattle’s 2026 roster plans.

More than 500 readers voted on the best Mariners players at each position ahead of Seattle's 50th anniversary season. Here's your all-time Mariners team.

Mariners baseball is back in Seattle as opening day kicks off with a 7:10 p.m. first pitch against the Cleveland Guardians at T-Mobile Park.

Julio Rodríguez's single tied the game with the Seattle Mariners down to their final strike in the ninth inning, but the Guardians answered back with a three-run 10th for the win.