Phoenix Municipal Stadium is a baseball stadium, located in Phoenix, Arizona. It is often referred in short as Phoenix Muni. The stadium was built in 1964 and holds 8,775 people. It is the home of the Arizona State Sun Devils baseball program, having hosted the team since the start of their 2015 season. It is a former spring training home to the Oakland A's, serving in that role from 1982 to 2014. The San Francisco Giants previously held spring training at the ballpark from 1964 to 1981, when they moved to Scottsdale Stadium.