How can I protect my foot/ankle from further injury for basketball practice?

Exercise and bracing. Ankle sprains are the most common ligament injuries in sports and the most common injury in basketball. Studies show that completion of a program of physical therapy to restore motion, strength, and balance and continuing a maintenance program upon return to sports is the most effective way to reduce the risk of recurrent ankle sprains. Ankle bracing is an effective adjunct to therapy.
Ankle injuries. Ankle braces are a good preventative measure. Orthotics may help some patients as well.
Proper support. Support for your foot and ankle can be achieved with proper sport appropriate foot gear, orthotics and a good lace up ankle brace.