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Cubs set to close the deal with Epstein
Epstein would take a high-level executive role, above the GM level. He then is expected to hire Padres GM Jed Hoyer away from San Diego to serve as Cubs GM.
The Cubs' deal with Epstein has been on hold as the team works out a compensation package with the Red Sox. Epstein has one year remaining on his contract in Boston.
If an agreement is reached, a press conference in Chicago could be held Friday, which is an off day for the World Series. MLB normally bars teams from making major announcements during the Fall Classic.
Despite the indications the deal is near fruition, Red Sox owner John Henry told the Boston Globe that a deal is "not close."
The Red Sox are expected to promote assistant GM Ben Cherington to replace the 37-year-old Epstein, who became the youngest GM in major league history when he was hired by the team at age 28 in 2002.
Padres assistant general manager Jason McLeod also would join Epstein and Hoyer with Cubs, sources said. The Padres would receive no compensation. They, in turn, are expected to promote Josh Byrnes to GM.
Padres vice chairman Jeff Moorad hired Byrnes away from Boston to be the Diamondbacks' GM in 2005, when Moorad was part of Arizona's ownership group.
Boston broke an 86-year drought by winning the World Series two years later and went on to a second title in 2007.
The Cubs have not won the World Series since 1908, the longest drought in baseball.
NewsCore contributed to this report.