Starting next month, Safeco Field will come to be known as T-Mobile Park. The Bellevue-headquartered cellular carrier announced a 25-year partnership with the Seattle Mariners, under which the name change will take effect in January 2019 and last until December 2043.

The partnership is still subject to approval by the Washington State Major League Baseball Stadium Public Facilities District, according to T-Mobile.

“T-Mobile Park isn’t just some corporate-branded sponsorship to us…this is about supporting the community and our hometown Mariners in building a World Series-caliber team,” said John Legere, T-Mobile CEO.

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“T-Mobile has a deep commitment to this community, a passion for customer service and a well-earned reputation as a leader in innovation. These are the qualities that make T-Mobile the right partner to name this iconic ballpark,” added John Stanton, Seattle Mariners Chairman and Managing Partner.

New perks at the ballpark will include early game day access to the “T-Mobile ‘Pen,” a gathering spot that will allow fans to watch batting practice and pitcher warm-ups; “T-Mobile Tuesdays,” which will include prizes and upgrades during Tuesday games; and other discounts and benefits.

Earlier this year, the Mariners renewed their lease with the Public Facilities District, the company that owns the field formerly known as Safeco. Under that agreement, the Mariners will pay at least $600 million for maintenance, capital upgrades, and more over the course of the 25-year lease term.

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“Fans have come to expect a great experience at this ballpark and we have made a commitment to invest substantial Club revenues over the next 25-years to make sure that continues,” Mariners President and CEO Kevin Mather said. “This partnership with T-Mobile will help us meet that obligation so that fans will have a first-class experience at T-Mobile Park for decades to come.”

The field re-branding process will take place over the next several months, and most of it will be finished by Opening Day on March 28, 2019.