Iowa State coach Matt Campbell quickly rebuffed a Michigan State overture on Tuesday after longtime Spartans coach Mark Dantonio resigned, a source with direct knowledge of the interest told the Register.

The source said Campbell made it clear he had no interest in the opening, which unexpectedly came open after Dantonio stepped down amid allegations by his former recruiting coordinator that he committed NCAA recruiting violations.

Campbell has become one of the more attractive coaching candidates after his work in Ames. Campbell has led Iowa State to 26-25 record and three bowl games in four seasons. Iowa State, which has finished tied for third in the Big 12 Conference the past two seasons, is coming off a 7-6 campaign that included a loss in the Camping World Bowl.

Iowa State has tried to keep Campbell in Ames by giving him contract extensions the last two years. The latest, which came last December, was a contract extension through the 2025 season. It's worked, with Campbell staying on board for another season with the Cyclones.