By Tom O’Brien NEFJ Staff MILFORD - An old rivalry was renewed a week ahead of another meeting when top-seeded Uxbridge and fourth-seeded Northbridge met in the MIAA Division 7 semifinal on Saturday. In this one with so much on the line, the Spartans took down the Rams 28-7. Uxbridge (11-0) will now face Mashpee in the D7 Super Bowl at Gillette Stadium. Northbridge (8-3) will get ready to see...