David Cobb has a ready smile for anyone wondering if he's getting tired.
The Gophers senior leads the nation with 27 rushing attempts per game, but he's quick to note how little the team used him as a freshman and sophomore. He got 11 carries those two years combined.
"So I'm kind of fresh," Cobb says in a way that suggests he wishes he could take a handoff right now.
He's been so productive, racking up 1,013 yards through seven games, that the Gophers can't seem to help themselves. He's had 34, 32, 30 and 35 carries over the past four games — all victories — and Saturday the Gophers face an Illinois team that ranks last in the Big Ten in rushing defense.
"He's a back that seems to get stronger as the game goes on," coach Jerry Kill said Tuesday. "I keep saying every week, 'We need to take a few of those off of him.' It's hard to do, when he gets into a rhythm. But I think we need to be careful."
The Gophers record for rushing attempts in a season is held by Thomas Hamner, who had 308 over 12 games in 1999. At Cobb's current pace, he would finish the 12-game regular season with 324 carries, and 351 after a bowl game.
"He's a gamer," offensive coordinator Matt Limegrover said. "I think he would be disappointed if he wasn't there at a key point in time. But you have to make sure — the last couple of years we've run out of gas, as an offense. So we're also really looking at ways we can make sure that we stay strong right up until the end of November."
The Gophers believe they have good tailback depth behind Cobb, even if they've been reluctant to use it. Fellow senior Donnell Kirkwood led the team with 926 rushing yards two years ago, but he's averaging 2.3 yards per carry, compared with 5.4 for Cobb.