AP

Patriots offensive tackle announced Monday night that his infant son, Hudson, is battling kidney cancer.

Nate Solder was speaking at a fundraiser when he revealed that Hudson has undergone some chemotherapy treatments to fight a tumor that was diagnosed last month, Jeff Howe of the Boston Herald reported.

Nate Solder announced last spring that he’d played the 2014 season with testicular cancer. Solder often tweets about that cause and his son on his verified Twitter account.

Solder, 27, is in his fifth season with the Patriots. He was the No. 17 overall pick in the 2011 NFL Draft.