According to the Red Sox Fact of the Day calendar:

Japanese people that are born between April 2, 1980 and April 1, 1981 (Japan's 1980 Fiscal year) are referred to as the "Matsuzaka Generation." Daisuke Matsuzaka was born September 13, 1980.

Here's the latest quote from Daisuke Matsuzaka from the Associated Press:

"If I keep going like this, I have no right to be a part of this rotation"

Matsuzaka was recently diagnosed with a mild right shoulder strain. (June 21, 2009) You can follow the latest Daisuke Matsuzaka news on Google news.