Former NFL running back Ronnie Hillman has passed away at the age of 31 following a battle with cancer. Hillman played with the Broncos, Vikings, Chargers, and Cowboys during his time in the NFL, and he won a Super Bowl with the Broncos in 2015. 

Hillman's family made the announcement on his Instagram page, writing, "It is with heavy hearts that we announce the passing of our beloved son, brother & father, Ronnie K Hillman Jr. Ronnie quietly and peacefully transitioned today in the company of his family and close friends. We as the family, appreciate the prayers and kind words that have already been expressed. We ask that you would give us time to process our feelings as we prepare to lay our precious RJ to rest. More information will be forthcoming." 

The announcement comes less than a day after Ronnie's family revealed that he was in hospice after treatment for his cancer was unsuccessful. 

They wrote, "Though this message is difficult to share, we feel it is necessary.  August of this year, Ronnie was diagnosed with Renal Medullary Carcinoma. Renal Medullary Carcinoma (RMC) is a rare but highly aggressive neoplasm form of cancer that primarily affects young African Americans with sickle cell trait. Unfortunately treatment has not been successful and our beloved RJ is currently under Hospice Care where he is being kept comfortable and out of pain."