In a posting on his blog today, Curt Schilling confirmed that after 23 years, he is retiring with "no regrets."
Last year, after signing a one-year, $8-million contract, the 42-year-old sat out the entire season with a shoulder injury.
He had said he might return in the middle of this season.
The right hander ends his career with more than 3,100 strikeouts to his credit, the 14th most in baseball history.
Schilling won World Series championships with the Arizona Diamondbacks in 2001 and with the Red Sox in 2004 and 2007.
This program aired on March 23, 2009. The audio for this program is not available.