Tennis coaches are often more comfortable correcting difference than understanding what that difference allows. Teodor “Teo” Davidov switches the racket between his hands and plays a forehand from both sides. It is unusual. It does not match the traditional technical model. But neither of those facts establishes that it is dysfunctional. Davidov’s two forehands are not evidence that every player should be taught this way. His solution may offer advantages while also creating challenges when switching hands under severe time pressure. We also cannot yet know how successfully it will function at the highest level of senior tennis. That is not the point. The point is that his game expands our understanding of what a viable tennis solution can look like. Skilled movement develops through the interaction between the player, their intentions, the task and the environment. Different capabilities and development histories can produce very different solutions to the same performance pr...