MISSOULA, Mont. (AP) -- Cole Bergquist passed for 305 yards and two touchdowns to Mike Ferriter Saturday and Montana's defense held Portland State's offense scoreless in the second half for a 34-31 victory.
The teams combined for six second-quarter touchdowns and fourth-ranked Montana (9-0, 6-0 Big Sky) took a 31-24 halftime lead.
The Grizzlies went up 34-24 on a 35-yard field goal by Dan Carpenter with 1:46 left in the third.
Portland State's only second-half score came on a 24-yard interception return by Condrew Allen with 6:14 remaining. Allen intercepted UM quarterback Cole Bergquist less than a minute after Chris Clark intercepted PSU quarterback Drew Hubel in the end zone.
PSU (2-7, 2-4) scored first on a 30-yard field goal by Danny Urrego and the Grizzlies answered with a 47-yard field goal by Dan Carpenter.
Bergquist connected with Ferriter on a 69-yard pass play to give the Grizzlies a 10-3 lead with 5:20 left in the first quarter.
The second quarter saw two short-yardage touchdowns by PSU's Olaniyi Sobomehin and a 73-yard touchdown pass from freshman Drew Hubel to Tremayne Kirkland countered by Montana touchdown runs by Lex Hilliard and Greg Coleman and an 18-yard TD pass from Bergquist to Ferriter. Hilliard rushed for 116 yards while Ryan Bagley had eight catches for 138 yards for the Grizzlies.
Hubel, who passed for nine touchdowns last weekend in a 73-68 loss to Weber State, passed for 404 yards and one touchdown. Kirkland had nine catches for 140 yards and Kenneth Mackins finished with seven catches for 105 yards.
Arizona linebacker Scooby Wright's left knee injury is not season-ending, according to an MRI Wright had after Thursday night's opening win over UTSA, sources told ESPN's Brett McMurphy.
Syracuse starting quarterback Terrel Hunt has a significant injury to his right Achilles, head coach Scott Shafer said after the Orange's season-opening 47-0 rout of Rhode Island.
The Mountain West told ESPN's Brett McMurphy that officials correctly ruled the final play that kept Colorado from getting a potential game-tying touchdown against Hawaii before time expired.
ESPN 300 running back Elijah Holyfield, the son of former heavyweight boxing champion Evander Holyfield, has decided to stay home and attend Georgia, he announced Friday.
Miami reserve linebacker Al-Quadin Muhammad has been suspended for the season opener against Bethune-Cookman on Saturday for a violation of team rules, a source confirmed to ESPN.com
Ohio State quarterback Cardale Jones is "doing fine" after he was released from the hospital Wednesday night after being treated for symptoms related to a migraine headache.