San Quentin prison sits on a secluded bay just north of San Francisco and inside the walls hosts the largest death row population in the United States. But for it's general population, San Quentin has been a pioneer at using sports programs to aid in rehabilitation. Perhaps its most notable is the tennis program, with a full tennis court sitting right in the middle of a notorious prison yard. We spent a morning with the inmates to experience a truly unique sports culture. More from VICE Sports: Kyle Turley on Painkiller Abuse in the NFL (Trailer) - bit.ly/Painkillers-Trailer Slava Fetisov and the Soviet Hockey Legacy - bit.ly/Slava-Fetisov Bernard Hopkins Confirms Alien Nickname - bit.ly/Bernard-Hopkins-Alien Subscribe to VICE Sports here: bit.ly/Subscribe-to-VICE-Sports Check out VICE Sports for more: www.vicesports.com Follow VICE Sports here: Facebook: facebook.com/VICESports Twitter: twitter.com/VICESports Instagram: instagram.com/vicesports More videos from the VICE network: www.fb.com/vicevideos