Andy paying the price for not having the chance to do his Miami training and conditioning block after Wimbledon due to the Olympics. As he said, a nice problem to have in a way, but it also means he's not well acclimatised to the brutal conditions and he's not coping with it very well this year compared to previous occasions.
Oh please. Why is everyone else coping ? This was one match and it was a bad day at the office. Happens to the very best. This is NOT a consequence of playing the Olympics. Murray will be 100% in his next match.