have played 2-3 x a week in vivobarefoot shoes, evo 1 and 2. I have been able to play withou roling my ankles and any pain. Do have to avoid landing on heels and good balanced posture. The teaching pros have told me to get real shoes with ankle support, but would not go back.
Would recommend with a slow transition period of 3-6months, since it feels drastically different. Need to build foot strength and alter movement.
Use Vivo with socks, without caused blistering. Tried five fingers which fell apart on the tennis court.