"Oliver Perez already is a candidate to be released before Opening Day, and Luis Castillo hasn't shown much to believe he isn't a possibility to face a similar fate. Castillo, entering the final year of a four-year $25 million contract, served as the Mets' DH in Friday's 4-3 win over the Marlins, going hitless in three at-bats. Manager Terry Collins has said he plans to trim the number of those vying for the starting second base job by the Mets' off-day on March 14. Justin Turner, who has minor-league options remaining, got his first start at second Friday and went 1-for-3 (infield single). Rule 5 draft selection Brad Emaus and Daniel Murphy also are battling for the starting job." Read more: http://www.nydailynews.com/sports/b...05/2011-03-05_castillo_closes_in_on_exit.html