Carlos Martinez will wear No. 18 next season to honor his late friend and former teammate Oscar Taveras, who died in a car accident in October.
The Cardinals have acquired Jason Heyward and Jordan Walden from the Braves for Shelby Miller and Tyrell Jenkins.
Toxicology reports showed Taveras had a blood-alcohol level five times the Dominican Republic's legal limit when he lost control of his car Oct. 26 on a highway in the tourist region of Puerto Plata.
The BWAA has revealed the top three finalists for the American League and National League for Rookie of the Year, Manager of the Year, Cy Young and Most Valuable Player.