Tennis is a young man's game. Until you're 25, you can play singles. From 25 to 35, you should play doubles. I won't tell you exactly how old I am, but when I played, there were 28 men on the court - just on my side of the net.
Like many Americans my thoughts and prayers are with the people of London. My deepest sympathies are extended to those who lost a loved one in the recent terror attacks.