Spring begins when pitchers and catchers report… right around Valentine's day every year. That means that Scottsdale Stadium is home to professional baseball from February 15th until March 30th, when the teams break camp to go north to begin their season. This is usually the end of most Spring Training baseball stadiums in Arizona. At Scottsdale Stadium however… baseball continued here throughout the season as the Triple-A Phoenix Firebirds announced that they would be leaving Phoenix Muni (where the Firebirds had played for most of their existance) to begin full time play at the new Scottsdale Stadium in 1992.