Iglesias was called up to the Red Sox on Tuesday, after Kevin Youkilis was not in the lineup for the third straight day due to a sore back.
The Red Sox have sent Mark Melancon to Triple-A Pawtucket, hoping the reliever can work out whatever issues are plaguing him in the minors.
Red Sox pitcher Junichi Tazawa was roughed up in his return to baseball Monday night, surrendering six runs in just two-thirds of an inning for the Portland Sea Dogs.
The Boston Red Sox have activated right-hander Junichi Tazawa from the 60-Day disabled list on Monday and optioned him to Double-A Portland.
The Boston Red Sox have added left-handed reliever Dennys Reyes to the major league roster.
The Boston Red Sox are encouraging fans to join the team in showing support for those affected by the earthquake and subsequent tsunami that struck Japan last Friday.