Biceps femoris tendinitis usually triggers pain at that spot.

Massage, ice, muscle rubs, and stretching of the hamstrings can help a lot.

Since it runs down the calf, also consider peroneal tendinitis. Massaging the lateral and anterior calf, icing the leg down to the ankle, and muscle rubs also help there.

If it gets really bad or spreads, you can see an orthopedist about getting a prescription for physical therapy. A PT may use ultrasound or other techniques to help.

If it's your calf and not from your hamstring, you may want to take a look at your cleat position and cleat wear.