Curt Schilling retired from baseball today, ending a career in which he won World Series titles with the Boston Red Sox [team stats] and Arizona Diamondbacks and was one of the game’s most dominant pitchers and grittiest competitors. The 42-year-old right-hander said on his blog he’s leaving after 23 years with "zero regrets." Schilling missed all of last season with a shoulder injury after signing a one-year, $8 million contract. "The things I was allowed to experience, the people I was able to call friends, teammates, mentors, coaches and opponents, the travel, all of it, are far more than anything...