Before his first series in St. Louis after leaving the Cardinals, Yankees' slugger Matt Carpenter got emotional, revealing how excited his family is to be back, especially his five year-old son. 

Carpenter stated, "He tells his friends, depending on the day that he is, he's either a Cardinal or Yankee. 

Carpenter became agitated and needed to stop and take a deep breath. 

Carpenter, who had spent his entire career with St. Louis Cardinals, made his major league debut in 2011.

He played his last game with the team in December. He was the highest-scoring player in the league, playing three All-Star games between '12 and '18. 

He also hit over 20 home runs in just four years. He was also the most prolific major leaguer with 199 hits in 2013. 

Carpenter spent the offseason trying to improve his swing. He insists that he is still a major leaguer. 

He spent the first half of the season with the Rangers minor-leagues. However, he opted out of his contract in May and signed with the Yankees. 

He has enjoyed a resurgence year, with 15 home runs and a 1.22 OPS in just 133 plate appearances.