The Boston Red Sox are dealing with an unwelcome visitor inside their clubhouse. The Red Sox planned to let him complete light work Sunday before evaluating how his body responded. MORE: Red Sox Make Wilyer Abreu Decision For Athletics FinaleIllness Interrupts Yoshida’s ResurgenceYoshida’s production has helped stabilize a Red Sox lineup forced to navigate numerous injuries and constant roster movement. The Red Sox already have survived injuries, trade deadline changes and a difficult schedule during their remarkable second-half surge. More Red Sox