Idaho wide receiver Collin Sather died on Tuesday morning after battling kidney cancer, the school announced. He was just 19 years old.

Sather was diagnosed with the cancer in January. It had spread to his lungs and neck as it progressed. He was taken to the hospital on Jan. 21 after suffering from stomach pains a few days earlier.

That’s when Sather was diagnosed with advanced renal cancer.

Sather was a redshirt freshman wide receiver for the Vandals.

“Collin was a tremendous young man and a great teammate,” said head coach Paul Petrino. “It is a testament to him to see how many of our players cared so deeply about him and how many lives he touched in the Vandal Family in such a short time. We challenge our players to be tough and always choose character. Nobody did a better job of that than Collin. My time with him made me a better person and I know his teammates feel the same way.”

Sather celebrated his 19th birthday on Sunday. A GoFundMe was created to help Sather and his family after he was diagnosed with cancer. Over $18,000 had been raised as of Tuesday.