If he hasn't physically recovered from Wimbledon, that must be from the doubles match he chose to play right after the marathon. Sometimes you wanna be too courageous but it's just as insane. He definitely should have pulled out of it. But that's also why we like him.
My Spanish is really poor but I've understood from the article on the tourney's off. website that Millot could have won in straights. Obviously he had an mp in the second but that doesn't sound good either.