The Cavaliers, meanwhile, are coming off a 48-20 thrashing of Stanford in their ACC opener on Saturday. Virginia is averaging 45.5 points per game this season, 11th-best in the nation.
Quarterback Chandler Morris, a transfer from North Texas, has been a big part of that success, throwing for 1,050 yards and eight touchdowns. He doubled his TD total last week with four scores and 380 passing yards against the Cardinal and also has 132 rushing yards this season.
Trell Harris had 145 receiving yards and caught three touchdown passes in that game.
"This is a team that, offensively, is one of the best in the country," Norvell said of Virginia. "... You really felt great speed and physicality in their game there Saturday night."
The Seminoles will present the toughest challenge of the season to date for Virginia. Florida State ranks 12th nationally in scoring defense (10 ppg) and 21st in total defense (248 ypg). While the last two games were against outclassed competition, those rankings include a game in which Florida State held then-No. 8 Alabama to 17 points and 341 yards on Aug. 30.
Offensively, the Seminoles lead the country in scoring (58 ppg) and total offense (628.7 ypg).
If Castellanos is sidelined or if his mobility is limited, the Seminoles should be able to rely on their run game. They set a program record with 498 rushing yards vs. Kent State, and their 17 rushing touchdowns are the most nationally.
"They're doing what (Seminoles offensive coordinator) Gus (Malzahn) has always done. He makes you defend every inch of the field," Elliott said of Florida State's run game. "He's got a big offensive line, a stable of running backs and a quarterback that can make you right in the run game."
While Castellanos' status is questionable, Norvell said starting tight end Randy Pittman, who has missed the last two games with a lingering injury, and starting slot receiver Squirrel White (wrist), who was sidelined Saturday, are in line to return Saturday, barring setbacks.
--Field Level Media