Isaiah Davis ran for three touchdowns, including a 42-yard dash to open the second half, and top-seeded South Dakota State turned in a dominant performance to shutout Mercer 41-0 Saturday in a Football Championship Series second-round game. The Jackrabbits advance to face the winner of Saturday's game between Youngstown State and eighth-seeded Villanova. Mark Gronowski found Jaxon Janke with a seven-yard TD and Davis capped a six-play, 66-yard drive with a six-yard run with :21 left in the half.