OMAHA — It already had been a memorable Sunday for Joe Papi — a Father’s Day spent watching his son play in front of a packed stadium at the College World Series. He wasn’t sure it could get any better. But with one ninth-inning swing of the bat, it did.  From his seat near the concourse behind the third base dugout at TD Ameritrade Park, Joe Papi had a bird’s-eye view of the natural, left-handed stroke he first witnessed in his driveway when Virginia first baseman Mike Papi was 3. His son’s walk-off double gave the Cavaliers a dramatic, 2-1 win over Mi...