Per Mansionglobal: National Hockey League wunderkind Nathan MacKinnon, a star player for the Colorado Avalanche, has put his corner penthouse in Downtown Denver’s uber-exclusive Coloradan building on the market for $3.5 million. The condo, which he moved into when the building opened in 2019, was listed last week by Tamara Cooper of LIV Sotheby’s International Realty. The 2,795-square-foot unit, which has two bedrooms, two full bathrooms and a half bathroom, is in the city’s Union Station neighborhood, which Ms. Cooper said is “cool, hip and walkable.” “The lifestyle is unbeatable,” Mr. MacKinnon told Mansion Global in an emailed statement adding that having Whole Foods nearby was a big plus for…