Nintendo, which has a 10 percent ownership stake in the Mariners, will be the team's first-ever jersey sleeve partner.

as Seattle signed Sam Darnold to a three-year, $100.5 million deal early in free agency. Now that Darnold’s set to take over in Seattle, fans can grab his jersey now on Fanatics.

Are the Seattle Mariners poised to level up this season? Perhaps, if a jersey patch is the boost the team needs. The Mariners ...