Georgia running back Nick Chubb, who last year established himself as one of the nation’s best rushers, left today’s game against Tennessee in the first quarter after suffering a gruesome hyperextension of the left knee.

Chubb, who earned the starting role last season after Todd Gurley was suspended in an autograph scandal, is also an unpaid athlete. Georgia announced Chubb would be out for the game, as expected, and later in the first quarter was shown on CBS being lifted onto a sidelines cart. As more news emerges on Chubb’s condition, we will update.