"When highly touted Red Sox prospect Jose Iglesias bounded into the clubhouse about three hours before Tuesday night's game against the Oakland Athletics, it was clear that a roster move was in the works.

What is unclear is how long Iglesias will take up residence at Fenway Park. This could be a relatively short visit, depends on how well -- and how quickly -- third baseman Kevin Youkilis recovers from his ailing back.

To make room for Iglesias on the roster, the Red Sox optioned right-hander Junichi Tazawa to Triple-A Pawtucket.

With Youkilis unavailable for the third straight game, the Red Sox did not want to be left without a reserve infielder. "