Planned 205,000-sq-ft, three-story building would replace training center built in 1990 on a 26-acre campus in Englewood, Colo., according to the team.

HOK Sports + Recreation + Entertainment is architect for the stadium, estimated to cost at least $1.4B, with Barton Malow and AECOM Hunt named to manage preconstruction.

The NFL team's owner claims the city of Rock Hill, S.C., failed to make a promised payment for site infrastructure construction.

Total construction spending expected to climb by more than 21% in 2019

The Las Vegas Raiders stadium broke ground in November, joining a growing list of major stadium projects underway in the U.S.