I have calf pain now on the gastrocnemius part of the calf muscle. Yesterday i was out playing tennis when my left calf was starting to have little cramps. I stretched both calves out and started playing again. I felt great, then i noticed a short ball coming, and i smashed a winner with my forehand. My right leg was off the floor when i hit the winner, and then i fell to the floor. My right leg's calf started hurting like a pulled muscle. I layed down on the floor, and massaged it to get the pain to go away. There was no pop sound or anything, it just felt like a muscle spasm or something. After i massaged it and the immediate pain went away, i got up and walked to the bench. Then i slowly stretched it out. Yesterday it had hurt to walk on the leg the rest of the evening, it sort of felt like the muscle spasm would come back if i walked on it too quickly. Today it feels tight, and have some pain when i walk on it. The last time i worked out before was tuesday, and this happened on friday. On wednesday i played tennis for an hour or 2, and didn't really do much exercise on thursday, except maybe an hour of tennis (didn't play intensely). Just wondering if this is anything serious. Anyone else had a muscle spasm in the gastrocnemius part of the calf? Is it supposed to hurt for a couple days? Do i have anything serious or is it just a minor injury like a muscle strain that can be treated with r.i.c.e.?