Yesterday, David continued his tradition of early exits at Acapulco (2008 was the exception that proves the rule) with his defeat against Aljaz Bedene, who won 4-6, 6-0, 6-4.
Without coverage it's impossible to say what happened in this match, or rather - why...
Edit: As far as I can see, David didn't talk to the media after the match so I can offer you no quotes. And as the match took place away from centre court, without any coverage, nobody really knows what happened. The most popular theory seems to be that it was probably a lack of fitness and stamina that led to this result. In any case, nobody seems to have heard anything about an injury.
Davis Cup Intermezzo post coming this weekend. And then on to Indian Wells, next week (the draw will be on Tuesday).
Here's a clip with a bit of footage from the match, including match point: