After 13 seasons as the Red Sox ace, Roger Clemens’ departure to Toronto via free agency left behind strong feelings. With a 3-1 Blue Jays win in his July 12, 1997 return Fenway, Clemens’ 16-strikeout performance - and his intense stares between innings toward the box occupied by the Red Sox GM and CEO — seemed to suggest he was channeling some of that energy into his pitching.