Kansas City Royals third baseman Mike Moustakas and his wife, Stephanie, welcomed a baby girl into the world.
Mila Constance Moustakas was born on Tuesday.
"So happy to be this beautiful little girls's daddy," Moustakas wrote on Instagram.
He posted two photos on his account. One of a sentimental moment with the baby girl holding his finger and another of Mila and her "best friend," their dog.
The photos he posted on Friday received several thousand likes and comments.
