The Seattle Mariners will play at T-Mobile Park starting next season under a new 25-year naming rights deal.

The agreement takes effect Jan. 1 and runs through December 2043.

The Mariners' ballpark has been known as Safeco Field since it opened in 1999 as part of a 20-year agreement. Safeco Insurance and the Mariners announced in June 2017 that the agreement wouldn't be renewed following the 2018 season.