Washington State head coach Mike Leach is not sure if the Huskies will play again after the season after a 25-21 win over Oregon on Saturday.
The Beavers are 6-0 against the Beavers, but lost 28-24 in Eugene in November.
Washington State won that game by 27 points.
Washington will face Michigan State on Monday night in a game that is set to tip off at 8 p.m.
ESPNU is bringing the game live to ESPN and ESPN2.
Washington is 2-2 against Michigan State.
Leach said he is not expecting the Beazers to play in the Pac-12 Championship game on Jan. 20, which would be the first time in more than 40 years that Washington State has been a member of the conference.
Washington State (5-7, 1-6) is in the middle of a two-game losing streak and is 0-4 in league play.
Washington has lost six of its past seven games and will be in a tie for the worst record in the nation with just seven wins against teams ranked in the top 15.
Washington’s win Saturday was the Husky team’s first since Jan. 23, 1983, when it beat Oregon 31-20.
Washington trailed 21-0 entering the second quarter before rallying to tie the game at 22 late in the third quarter.
The Huskies won their last seven games, including a 42-27 victory over Oregon in Eugene on Oct. 16.
The win over Washington State is the Huskers first Pac-10 victory since beating Washington State 41-28 on Oct .
Washington defeated Arizona 42-16 in Tempe on Saturday, the Huskies’ second straight victory over the Wildcats.
Washington leads the Pac 10 with 30 wins.
Washington is 2 of 12 in Pac-11 play.
The Beavers have lost three of their last four games.
Washington will have to replace three starters on offense, with the loss of senior quarterback Austin Wintney and senior wide receiver Jordan Matthews.
Washington also lost junior cornerback Brandon Wilson, junior wide receiver Kyle Kostner, junior offensive lineman Ryan Grier, junior linebacker Jordan Houshmandzadeh and senior cornerback Tyler Murphy.
Washington coach Mike Riley said the Beaver offense struggled mightily against Oregon last season and is likely to struggle again against Washington.
Washington quarterback Cody Kessler was a third-team All-Pac-12 pick, but will likely have to earn a spot on the depth chart for the season.
Kessler threw for 4,931 yards and 19 touchdowns and rushed for 2,611 yards and eight scores.
Washington has not lost a Pac-15 game this season.
Washington’s defense was a solid unit last season, allowing just 10.9 points per game.
The Huskies allowed a total of 1,822 yards and 39 points.
Washington and Oregon played in Eugene, where Washington was 2-0 and Oregon was 2.0-0.
The teams combined for 24,636 total yards in conference play.
Oregon (7-3, 3-1) has lost five of six and is tied for the most wins in the conference at 6-3.
The Ducks have not won a Pac 12 game this year.