Josh Heupel said “unknowns” pose the biggest challenge to his Tennessee team vs. Syracuse. But he isn't talking about the Vols' big questions marks.

One of the big questions ahead of the Tennessee Vols' season-opener against the Syracuse Orange is whether defensive back Boo Carter will play. Carter has been working his way back into the good graces of his teammates and Tennessee's coaches after missing some team activities during the summer.

The Tennessee Volunteers have been able to prep for the Syracuse Orange leading into fall camp, as teh Vols will show their true colors in what has been conside