Matt Carpenter of the Yankees becomes emotional 

 when discussing his return to St. Louis

 before his first series in St. Louis since leaving 

the Cardinals and expressed how happy his family is to be going back,

 especially his five-year-old kid.

 when discussing his return to St. Louis

 Carpenter remarked, "Depending on the day,

  he tells his friends he's a Cardinal or Yankee

  he doesn't know

 Carpenter broke down at that time and needed a moment to gather himself