The Seattle Mariners made their anticipated official announcement that they agreed to a 25-year naming-rights agreement with T-Mobile to rename their SoDo ballpark after the Bellevue-based cellular company.
![](https://www.ballparksofbaseball.com/wp-content/uploads/2018/12/T-Mobile-park.jpg)
The Seattle Mariners made their anticipated official announcement that they agreed to a 25-year naming-rights agreement with T-Mobile to rename their SoDo ballpark after the Bellevue-based cellular company.