Cliff Grassmick / Staff Photographer
Colorado cornerback Trey Udoffia knocks the ball from CSU receiver Olabisi Johnson on Sept. 1 during the Rocky Mountain Showdown in Denver.

Colorado’s football season opener against Colorado State has been moved up a day.

The Buffaloes and Rams will square off on Friday, Aug. 31, with kickoff slated for 7:30 p.m. for the annual Rocky Mountain Showdown. The game will be televised on the CBS Sports Network.

Originally scheduled for Sept. 1, this game will now mark the eighth time in CU history that the Buffs will play a game in August. The Buffs are 3-3-1 in that month.

This will also be the sixth year in a row that CU will on open the season on either Thursday, Friday or Sunday.

CU’s 2018 schedule now includes three Friday games, including Sept. 28 against UCLA at Folsom Field, and Nov. 2 at Arizona.

For the second year in a row, the Rams will have a game in hand before facing the Buffs. CSU will host Hawaii on Aug. 25.

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