LYNN – Last year, toward the end of a similar Classical-St. Mary’s blowout, shifty Rams running back Calvin Harris went down in excruciating pain and had to be helped off the field.The verdict: a torn anterior cruciate ligament ? the same injury that has just befallen Tom Brady.He missed the season – and it could have potentially cost the Rams a Super Bowl championship in coach Matt Durgin’s final season with the team. As it was, Classical – without one of its primary weapons – came within less than a minute of defeating Gloucester at Manning Field and winning the Northeastern Conference/Large.Harris was back last night, dipping and darting as if nothing had ever happened. And on the team’s third play from scrimmage, he took off for the left side, found a hole and a seam, and cut back against the grade until he got free ? and then sprinted toward the goal line for a 59-yard touchdown run.And even Durgin – who is now coaching for the Spartans – had to be happy.”It was nice to see him running like that,” he said.”Calvin’s worked extremely hard,” said Classical coach Tim Phelps. “He did well in spring track, and he’s really come back.”Like most Classical teams, this one has a steady supply of quick, shifty backs, beginning with Harris and continuing with Cameron Smith, Chris Francois and Jamil Muriel.