On January 21, 2010, the Cardinals signed Holliday to a seven-year, $120 million deal ($ million today), and he switched his uniform number to 7 in honor of fellow Oklahoman Mickey Mantle. The contract features a full no-trade clause and a $17 million team option for 2017 or $1 million buyout. It was the richest contract in team history and the largest of the 2009–10 offseason. At the Cardinals' annual Winter Warm Up, he was bestowed with a new nickname—"The Stillwater Stinger".