6:24pm: Mark Gonzales tweets that Estes says he hasn't retired. Instead, Estes indicates that he feels good but can't get his release from the Dodgers organization.
1:46pm: Diamond Leung reports that Shawn Estes has retired. The 36-year-old was pitching for the Dodgers in Triple A, where he started the season 3-4 with a 3.07 ERA. The lefty accepted the minor league assignment in hopes of fortifying the Dodgers' pitching later in the year.
His best major league season came in 1997, when he went 19-5 with a 3.18 ERA and 181 Ks for the Giants. Estes pitched for six teams other than the Giants, including every NL West team but the Dodgers.