Today in 2007, the king of grass court tennis, Roger Federer, played an exhibition match against his rival, clay court great Rafael Nadal. Not their only matchup, but for this one, the court was half grass and half clay, making it a so-called "battle of the surfaces." Plus: today in 1929, the birth of Link Wray, a guitarist so wild that his instrumental classic "Rumble" was once banned for fear that the song - which, again, had no words - might spur listeners into juvenile delinquency!