08:09 AM ET 01.25 | One of Red Sox nation's favorite sons is back in the fold -- sort of. In his new role with the Red Sox, Pedro Martinez will act as a mentor to impressionable pitchers, a spring training instructor, even a confidante for general manager Ben Cherington. Just don't expect him to pitch. "No, no, don't even think about me coming back," Martinez, 41, said [Thursday], flashing a megawatt smile. "No, no, I don't think so. Those three years, four years, that I've been (retired) made it clear that I don't belong in the field anymore." ... While the Red Sox are working out in Fort Myers, Martinez will be there, returning as a special assistant, a role that may be undefined but hardly is ceremonial.