Thats the sports performance center directly West of the plaza.
Exactly. Here's the description in the press release:
The football team's facility will be expanded and renovated – including nearly 20,000-square feet of additional locker room, team lounges, additional offices and gathering spaces – to meet its program needs. In addition, a new Olympic sports center will be located in the new facility that will include locker rooms, batting cages, weight room and sports medicine facilities for soccer, softball, tennis and golf.