Tempe Diablo Stadium is a baseball field located in Tempe, Arizona. It is the spring training home of the Los Angeles Angels of Anaheim and the home field for night games of the Arizona League Tempe Angels. It was the spring training home of the Seattle Pilots in 1969 and 1970 [the Pilots moved to Milwaukee after spring training in March 1970 and prior to the 1970 regular season], the Milwaukee Brewers in 1971 and 1972, and the Seattle Mariners from 1977 through 1993; the Mariners now play at the Peoria Sports Complex, with the San Diego Padres.
The stadium was built in 1968 and holds 9,558 people. The stadium underwent an extensive $20 million renovation and was rededicated on Mar. 3, 2006. The renovation included the main stadium, the Major League Fields and the Minor League Complex on site. In return for the newly updated stadium, the Angels agreed to extend their spring training lease through Dec. 31, 2025. $12 million of the renovations were funded by the Arizona Sports and Tourism Authority, a municipal corporation charged with funding renovations of Cactus League stadiums throughout Maricopa County.
Tempe Diablo Stadium can be seen from the Maricopa Freeway.