Standing calf stretch:

Stand facing a wall with your hands on the wall at about chest level. Your injured leg should be about 12 to 18 inches behind your uninjured leg. Keep your injured leg straight with your heel on the floor and lean into the wall. Bend your front knee until you feel a stretch in the back of the calf muscle of your injured leg. Hold this position for 30 to 60 seconds. Repeat 3 times.