I was also waiting for Medvedev to suffer a "surprise" defeat as he is like a different player on clay, and definitely vulnerable... a situation that can only be exacerbated when he's just coming back from an injury layoff. I half expected him to just skip the clay court season entirely... But at the time he registered for the French Open, there were still ranking points available for non-Russians at Wimbledon, which would mean no chance for Medvedev to return to number one. Obviously now the situation is different, and Medvedev will be number one irrespective of what happens in France. Perhaps if the Wimbledon ranking points removal had happened a couple of weeks ago, we wouldn't even have seen Medvedev at RG.
But... whilst I expected him to lose at some point, I thought he'd still have too much for Cilic.