I was at the baseline when the other side hit a drop shot. I took a sudden step forward, and felt a snap/pop in my calf. It wasn't a terrible pain, but was uncomfortable enough to not be able to play anymore. I knew I had pulled it. Next morning, the calf has tightened up significantly and I have a pronounced limp. It looks like I will be watching movies all weekend. There is no visible sign of any injury. No swelling. No discoloration. I assume this is a mild tear. Anyone ever do this? Is this serious? What can I expect? Will I be able to work on Monday?