Colorado State University received a $20 million donation for their new football stadium. One thing the anonymous donor asked for is keeping the field named after coach Sonny Lubick.

Colorado State's football team will continue to play on Sonny Lubick Field beyond the 2016 season, thanks to a $20 million donation, athletic director Joe Parker announced Friday to a group of Rams Club members.

Parker said the gift — made anonymously and one of the largest made to the university in general — carried the stipulation the playing field at the new on-campus stadium carried over the name of the legendary former coach who guided the program for 15 seasons for the life of the facility.

Parker and CSU president Tony Frank both said the school wanted to make sure Lubick — a man Parker called an "institutional treasure" — was honored at the new stadium, and the surprise donation presented the perfect vehicle.

Groundbreaking for the new stadium took place Sept. 12, 2015, and construction is ongoing for the project, which Parker stressed was on time and on budget and is expected to be ready for use in June 2017.

Part of the stadium’s funding is covered by sale of premium seating, which Parker announced sales meeting 69.7 percent as of now. The university is selling suites (22), loge seating (224 seats), and indoor (148) and outdoor (819) club seating. Right now, 13 suites have been sold, along with 172 loge seats, 119 indoor club seats and 542 outdoor seats.