From Joel Sherman:The Yankees have until a week from Thursday to pick up Sergio Mitre’s $1.25 million option for 2010. But even if they do not pick up the option, Mitre is arbitration eligible and the Yankees intend to keep him, sources tell The Post.What the organization is weighing now is whether Mitre’s arbitration price would fall below $1.25 million.Good, you can never have enough pitching.