A three-time All American at the University of Oklahoma, Growing up, Tisdale was not interested in basketball.
When older brothers Weldon and William played pickup games he usually quit before they finished, retreating to the family's sandbox.
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. 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.
His best season was in 1989–90 with the Kings, when he averaged 22.3 points and 7.5 rebounds a game.
Tisdale and Mitch "The Rock" Richmond combined to form one of the most dynamic duos in the NBA.
Tisdale became the first player in any sport to have his jersey number (23) retired by the University of Oklahoma in 1997.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.However, Tisdale began taking to the sport in the eighth grade when he first learned to dunk.He met his future wife Regina in April 1981 at church.