“I’m really proud of this number and excited to wear it to represent my daughter and many others out there.”

While Penelope is doing well, she will require open-heart surgery in the coming months, and Burger, 28, mentioned he will take a short leave during spring training to support his family through the procedure.

“She’s the strongest little person I know, and I believe she’ll get through it easily,” Burger said.

Acquired from the Marlins in a December trade, Burger also revealed that he and his wife, Ashlyn, plan to establish a foundation dedicated to research and support for Down Syndrome. The couple also has a 2-year-old son, Brooks.