You can help make sure it NEVER does by improving the range of motion of the joint and strengthening the muscles around it. There is another benefit to better ankle functionality--it will reduce the chance of knee injuries. Unlike the ankle joint below it and the hip joint above it, the knee has limited range of motion. In order to do it's job, which is to help provide stability to lower-body movement, the knees need the ankles to help alleviate stress. If your ankles aren't particularly mobile, a telltale sign is chronic knee pain as the knees will be required to do things they aren't designed to do very well.
Ben Shear, one of the most well-respected trainers on the PGA Tour, says ankle mobility is crucial not only to the swings of the elite players he works with such as Luke Donald (pictured) and Jason Day, but also the swings of once-a-week recreational golfers. Staying in posture, being able to rotate around the left leg, creating club speed through squat thrust, these are all things better ankle mobility can improve.
To watch him demonstrate a few ways you can increase your ankles' range of motion, click on the video below.
(Photo by J.D. Cuban)