DALLAS — The Oregon Ducks won't only be down Darren Carrington for Monday's College Football Playoff National Championship game.

Head coach Mark Helfrich announced Saturday morning that Ayele Forde, a senior running back and special teams star, was also left behind because of a positive drug test, just like Carrington, though Helfrich didn't say what the substance was that Forde tested positive for.

After consecutive 100-yard receiving games against Arizona in the Pac-12 title game and Florida State in the playoff semifinal at the Rose Bowl, Carrington is missing the trip because of reportedly testing positive for marijuana.

"I was sad for Darren," fellow receiver Dwayne Stanford said. "He's a young kid, he's been having such a great season and he turned it around, maturing a lot and I was just sad for him. But Darren's a strong kid and he'll regroup and be stronger next year."

The Ducks face Ohio State in Monday's title game.

-- Andrew Greif

agreif@oregonian.com

@andrewgreif