Blue Jays infielder Mark DeRosa is retiring after a 16-year major league career.FILE - In this April 2, 2011, file photo, San Francisco Giants' Mark DeRosa is greeted by his teammates after scoring during a baseball game against the Los Angeles Dodgers in Los Angeles. DeRosa is retiring after a 16-year major league career. The Toronto Blue Jays announced DeRosa's decision in a statement Tuesday, Nov. 12, 2013, less than two weeks after Toronto exercised his $750,000 club option for next season.FILE - In this Aug. 5, 2013, file photo, Toronto Blue Jays' Mark DeRosa watches his two-run single during a baseball game against the Seattle Mariners in Seattle. DeRosa is retiring after a 16-year major league career. The Blue Jays announced DeRosa's decision in a statement Tuesday, Nov. 12, 2013, less than two weeks after Toronto exercised his $750,000 club option for next season.