Forward Nikola Jovanovic had 20 points and 12 rebounds to lead USC to a 90-77 win over Washington State in a Pac-12 opener on Friday night at Beasley Coliseum in Pullman, Wash.

Guard Jordan McLaughlin scored 19 points for the Trojans (12-2), who have won seven consecutive games. USC had lost 10 straight Pac-12 road games since winning March 6, 2014, at Washington State.

Forward Josh Hawkinson led Washington State (8-5) with 19 points and 13 rebounds. Guard Ike Iroegbu, the only other Cougars player with more than nine points, had 13.

USC led by 25 points three times in the first half before taking a 54-37 lead into the locker room. The 54 points in a half are a season high for USC and against Washington State. McLaughlin scored 16 points in the half.

USC guard Elijah Stewart, coming off the bench for just the second time this season, scored nine straight points midway through the first half.

The Trojans led by 20 or more points much of the game. The Cougars pulled within 12 at 87-75 when forward Brett Boese sank a 3-pointer from the left corner with four minutes to go, but Washington State did not score again until Hawkinson dunked with six-tenths of a second to go.