If you push a high ankle sprain before it's rehabbed, because this condition by definition creates instability of the ankle and lower leg, the calf muscles will try to compensate to stabilize these segments. Doing so will eventually stress the calf muscles beyond what they are meant to handle, and can lead to a strain/tear.
When the interosseous and anterior tibiofibular ligaments are sprain/torn, there is a twisting instability created.
The right and left calf muscles (gastrocnemius muscles [also includes a smaller underlying soleus muscle]) try to balance out the forces created by the twisting much like the right and left reigns try to control the movement or non movement of a horse's head.
[Of course, with a high ankle sprain that is not entirely rehabbed, compensatory injury to the contralateral calf muscles can also occur.]