I strained and/or pulled something in my right calf a few weeks ago during a treadmill run. Ever since that day, I've had intermittent calf pain...feels like my calf muscle is in a constant state of contraction. It's been much better since I started wearing a compression calf sleeve during my runs and recovery. But today, I noticed that I have this massive bruising on my calf in the exact location where I was feeling the pain. Can a calf strain/pull cause external bruising? I definitely haven't fallen or bumped into anything that would have caused this monster of a bruise...I can't think of any other reason for it other than when I strained or pulled something a few weeks back.