One of the hardest things to do as a pro tennis player is to play when your opponent sustains an injury or starts to cramp at the end of a long, hard-fought match.  All of the attention and sympathy are directed at the ailing player, but in many ways, it’s an even more challenging situation for the “healthy” player.  Emotionally and mentally, he/she feels concerned for the hurt opponent all the while trying very hard not to get distracted.  Oftentimes, the hurt or cramping opponent “relaxes” mentally because he/she is so focused on the injury/cramping that the tennis just flows naturally.  Suddenly, he/she starts to spray winners and even move much better after 10-15 minutes or with some treatment during a changeover if the cause is cramps which can often temporarily subside.  And then there’s the challenge of how do you play an ailing opponent.  Everyone wants to win fair and square and no one wants to hear boos from 23,000 fans supporting his/her opponent so what to do?!  Ironically, 36-year-old, Andre Agassi, faced just that challenge at the end of his epic encounter last night with the multi-talented, 21-year-old, Marcos Baghdatis in the second round of the 2006 U.S. Open.  Probably, the most prudent path is to continue to play the way you’d played before your opponent became injured by targeting your opponent’s weaknesses, etc.  But is it OK to drop shot a cramping opponent?