Rookie Appears at Trenton Thunder Game

The Trenton Thunder just posted a picture of the newest member of the team, Rookie the bat dog. Rookie will make his official debut with the Yankees' Double-A affiliate in 2015 but was on hand for Opening Day.

For the dog lovers... Rookie (@MiLB debut in 2015) & his father behind Derby relaxing before @TrentonThunder opener pic.twitter.com/af0JHWMb78

- Matthew Stucko (@MatthewStucko) April 3, 2014

Rookie, the bat dog makes his debut for @TrentonThunder on #OpeningDay! pic.twitter.com/lBWLt8yDjw

- YES Network (@YESNetwork) April 3, 2014

Rookie might give Hank a run for his money as the most adorable dog in baseball.