Purchase tickets to see a game at University Stadium. If there's nothing scheduled while you're there, you might like to check if the stadium offers a guided tour of the facilities.
You'll have sightseeing choices galore when in Albuquerque. University Stadium is a great place to kick off here, but there are loads of other fine places to explore. Old Town Plaza, ABQ BioPark Zoo, and Indian Pueblo Cultural Center are near the sporting facility and and will cap off your day nicely.