"Vikings players said training camp was spirited, that the battles at the line of scrimmage were heated and the excitement was palpable.

Coach Leslie Frazier delivered messages about chemistry and discipline that resonated with players and assistants.

But that was training camp - a lockout-abbreviated, 10-practice session - that won't be enough to define these Vikings long term.

At least tonight's preseason opener at Tennessee might provide a glimpse of just what the Vikings have to work with in the next month.

The 11 returning starters who will execute a series or two on LP Field are looking to avoid injury, then watch from the sideline. But several new starters don't want to squander any chance to make an impression.

Defensive end Brian Robison and defensive tackle Remi Ayodele must uphold the legacy set during the past five seasons of above-average line play in Minnesota.

It's uncertain what to expect out of linebacker Erin Henderson and safety Tyrell Johnson after three years of inconsistency.

On offense, new left tackle Charlie Johnson could use a steady preseason performance after training-camp struggles blocking the edge against Jared Allen and Everson Griffen.

Most fans can recall quarterback Donovan McNabb's glory days after 12 NFL seasons and six Pro Bowls, but the nightmares of his one-year Washington debacle are still fresh. "