Hagen Danner was claimed off waivers by the Seattle Mariners from the Toronto Blue Jays, marking the team's second addition to their bullpen in as many days. Danner's acquisition reflects Seattle's strategy to bolster their pitching staff ahead of the new season, as they look to fill key roles in the bullpen.

Hagen Danner, a right-handed relief pitcher claimed by the Seattle Mariners, was drafted in the second round of the 2017 draft by the Toronto Blue Jays. After developing in the minors, he had solid performances with the Buffalo Bisons, posting a 3.81 ERA in 2023 and a 3.15 ERA in 2024, with strong strikeout rates. Despite only one major league appearance, Danner has the potential to fill a gap in the Mariners' bullpen following the team's offseason changes.

Hagen Danner got the save pitching the ninth inning for the Toronto Blue Jays in their 5-4 win over the Detroit Tigers.

Hagen Danner got the save pitching the ninth inning for the Toronto Blue Jays in their 5-4 pre-season win over the Detroit Tigers.