Cardinals place Matt Holliday on disabled list
The 29-year-old Peterson was batting .306 and led the PCL with 22 homers to go with 66 RBIs in 93 games at Memphis and is making his major league debut.
The 29-year-old Peterson was batting .306 and led the PCL with 22 homers to go with 66 RBIs in 93 games at Memphis and is making his major league debut.