Whether a would be contender for the no I position in Tennis should be "enjoying himself" after his dismal showing in the US Open,amid constant comments re injury is a matter for debate
I'm not even going to pretend to understand that remark. Andy did enjoy the DC tie, but I bet what he enjoyed more was helping the team win. To do that he played three best of five set matches in three days. That's hard work by anyone's standard. What are we saying now, Andy isn't allowed to have fun if he loses? Maybe Lendl should go mad and find him a naughty chair to sit on.
Constant comments re injury? Whose? Andy's? If so, I don't recall Andy saying he was injured during the USO, but what was patently obvious was that he was just mentally jaded after Wimbledon. He was entitled to be given the situation. The tension of that last game of the Wimbledon final alone probably lingered for a while. Andy was quoted during the DC tie as having watched the last game of the Wimbledon final a number of times, because he couldn't take in that he really had won. Personally I do think Andy's back wasn't right in New York, but that is just my opinion.
If you think quarter finals in a slam is dismal I don't really know what to say, especially in the context of how well Andy has done in the slams in the last 12 months. Andy has clearly got plenty of chance to win many more slams, but it's unlikely he is going to win every one he plays in.