second-oldest was attending college at the time). However, the first round of chemotherapy was unsuccessful, leading to a second round. As Tisdale recalled later, "The doctor had never given anyone chemo that was my size. They just calculated how much chemo to give me and said, 'We hope it doesn't mess up your kidneys. If it does, sorry." He drew on some of the challenges he faced during his basketball career to battle the disease, specifically recalling, "I had some coaches that literally didn't want me to make it, and one in particular was Bobby Knight. At the time I frowned on that … I look at it today that had I not persevered through a lot of the stuff he put me through, I probably wouldn't be here today. I thank God for that dude because he pushed me." In August 2008, Tisdale had part of his right leg amputated because of the bone cancer. On his web site, Tisdale said removing a portion of the leg would be the best way to ensure that the cancer would not return. In a video message at halftime of a September 28 Sooners' football game, Tisdale affirmed he was doing well and that he was at peace following the operation. Shortly after the operation, he was fitted for a prosthesis. Scott Sabolich, the clinical director, said that in his 21-year career he had never created a prosthesis as large as the one he had to design for Tisdale. Sabolich noted that it typically takes a new amputee from three to six months to acclimate to a prosthesis, while it took Tisdale a month. He proved to be equally quick in learning to walk on his new limb; a physical therapist Tisdale worked with in Tulsa said that he was months ahead of a typical patient in that respect. Tisdale's experience led him to establish the Wayman Tisdale Foundation to raise funds to help amputees with the prosthetic process, which is not always covered by health insurance. In April 2009, Tisdale accepted an award from the Greenwood Cultural Center in Tulsa, then set off on a 21-date national concert tour. Death Tisdale died on May 15, 2009, at St. John Medical Center in Tulsa, where his wife had taken him when he had trouble breathing. She later confirmed that he died after his esophagus ruptured following radiation treatments for his cancer. Tisdale's