Explain the end of the first half of Tennessee football against Florida

Florida scored a field goal but had it thwarted by a penalty and then didn't get a second attempt due to a 10-second offensive penalty runoff.

The Gators led the Vols 3-0 at halftime.

What happened at the end of the first half between Tennessee and Florida?

Florida ran down the field for its final field goal attempt without a timeout to stop the clock. Kicker Trey Smack hit a 43-yard field goal to give Florida a 6-0 lead.

But the Gators were called for an illegal substitution because there were 12 players on the field. The penalty resulted in a 10-second runoff for an offensive penalty in the final minute of the half. Florida could have avoided the runoff if it had been able to use a timeout, but it also wouldn't have been in the starting position if it had had a timeout.