When the Yankees' managerial position became vacant after the 2007 season, the Yankees interviewed Girardi, Tony Peña, and Don Mattingly. On October 29, 2007, Girardi was reported to be the Yankees' choice and the next day he signed a three-year contract, reportedly worth about $7.5 million. Girardi chose to wear number 27 to signify his wish to lead the Yankees to their 27th world championship. Girardi is a health enthusiast and banned sweets such as ice cream and soda in the clubhouse.