McCarthy debuts as Vikings QB under Coach O'Connell, with star Jefferson. They face high expectations. Mike DeCourcy predicts down his upcoming season.

The Detroit Lions, once NFL leaders, now face high expectations and a tough schedule in their bid for NFC Super Bowl success. Mike DeCourcy previews their year.

Tonight's NFL preseason starts with Chargers vs. Lions in the Hall of Fame game. Lions favored by 1.5; total at 32.5 points.