We've grown accustomed to seeing athletic fields, particularly in Baltimore, paid for by Under Armour and marked with signage featuring the company's logo.
Far less common is the scene of the sports apparel and footwear company upgrading a track and field in Portland, Ore., less than a dozen miles from the global headquarters of Nike, its archrival.
While Nike maintains a huge presence in Portland, Under Armour has office space in the city for footwear design. And, during the summer, Portland Parks & Recreation and Under Armour announced plans "to move forward with a significant partnership to enhance recreational opportunities for Portlanders," the city agency said on its website.
Under the partnership, Under Armour is renovating the city's Duniway Park.
The park was once the domain of Nike, which "two decades ago supplied funds and recycled rubber from used sneakers to resurface the Duniway track," the Wall Street Journal wrote in a story.
The headline: "Under Armour Is Stepping on Nike''s Turf—Literally."
As part of the deal, a clock featuring Nike's swoosh logo will be removed from the field. The story said Nike's deal to maintain the park expired in 2000.
Perhaps the sporting goods giant acted too late to protect its house.