During scouting meetings last week in San Diego, the Sox also worked out Japanese shortstop Tadahito Iguchi -- who is a free agent eligible to sign with a major league club -- their interest predicated on whether he could also play second base. But the Sox, who on Monday traded outfielder Dave Roberts to the Padres for infielder Ramon Vazquez and righthanded-hitting outfielder Jay Payton, plan to pass on Iguchi, according to industry sources familiar with his talks with the team. As it stands, Vazquez and third baseman Kevin Youkilis, who has been told to work out at first base as well, will come into camp as the team's primary infield reserves.