Cy Young Award winner Jake Peavy of the Padres took a physical on Tuesday, and the sides anticipated announcing a $52 million, three-year contract extension Wednesday. Also Tuesday the Padres agreed to terms with free-agent second baseman Tadahito Iguchi, pending a physical scheduled for Monday. Iguchi hit .304 in Philadelphia after being acquired from the Chicago White Sox at the trade deadline to fill in for injured All-Star Chase Utley. Iguchi will replace Marcus Giles, who slumped badly and eventually lost his starting job during his one season in San Diego.