The child, Sadie Brett, was the daughter of Bryan's wife's brother Bo Boyer and his wife, Ellen Boyer. Sadie was born last summer and suffered from "undisclosed cardiac issues," according to Us Weekly.
But on Sunday, Boyer posted that her daughter had "an infection of some sort" and was being treated with antibiotics.
Unfortunately, this isn't the first time Bryan's family has seen tragedy in recent years, The Boot and Us Weekly noted. Bryan's sister Kelly died in 2007, and her husband died in 2014. At that point, Bryan and his wife took in his sister's child as their own. Bryan's brother Chris also died in 1996. Chris was the victim of a car crash and was just 26 years old when he died.