New Texas Ranger Jake Burger will wear No. 21 this season. The number is for his daughter, Penelope, who was born with Down syndrome. Down syndrome is also known as trisomy 21, due to an extra copy of the 21st chromosome.

Jake Burger is one of the Texas Rangers’ offseason additions. He explained how his daughter influenced his switch from number from 36 to 21.

Jake Burger will wear No. 21 with the Texas Rangers, a number that has special significance for the first baseman’s family after his daughter was born with Down syndrome.

Burger, who was acquired by the Rangers this offseason in a trade from the Miami Marlins, will honor his daughter.

Jake Burger is the proud father of a newborn daughter whom he will honor on the field during every game. The new Rangers first baseman announced Friday that he will wear No. 21 to pay tribute to Penelope,