Started W3R1 this morning. Everything was going really well - I'd suprised myself by breezing through the first 3 mins run - when Ouch! - something 'went' in my right calf leaving me barely able to walk. Had to abadon the rest of the session and crawl back to the car. Four hours later I'm just about able to put weight on it. Guess that's me finished for the rest of the week - Oh well, better luck next time!