PFL Chicago headliner Sergio Pettis says achieving more MMA greatness is the best way to honor his late coach Duke Roufus.

PFL Chicago headliner Sergio Pettis has something to prove as he enters his first fight without the late Duke Roufus.

Legendary MMA coach Jeffrey “Duke” Roufus died from heart disease, the Milwaukee County Medical Examiner has ruled. The former kickboxer — who trained multiple world champions, including Anthony ...

PFL Chicago will see Sergio Pettis stepping inside the cage for the first time without his longtime coach, Duke Roufus.

The medical examiner deemed it to be a natural death, with obesity, congestive heart failure and atrial fibrillation all contributing. Roufus was found dead in his bed by a neighbor who had been asked ...