Deep in the San Fernando Valley, just as the sun begins to rise and the Topanga Village mall yawns awake, there’s a quiet little studio located across from the Rams ‘ practice facility where you might just spot the reigning NFL MVP sweating his way through a workout. There’s no roaring crowds. No intimidating pass rush. No spirals being thrown through the air.  Just Matthew Stafford in his yoga clothes, bending himself into a half-moon pose.  Stafford has been on record talking about how he’s