CU celebrates after beating rival CSU 44-7 in last year’s Rocky Mountain Showdown. Tickets for the 2017 game go on sale Wednesday.

Tickets for the Rocky Mountain Showdown will go on sale Wednesday.

The annual football game pitting in-state rivals Colorado and Colorado State will be held Sept. 1 at 6 p.m. at Sports Authority Field at Mile High in Denver.

CU fans can purchase tickets at or by calling 303-49-BUFFS.

This year’s matchup, to be broadcast on the Pac-12 Networks, will be the 17th to be played in Denver. Colorado leads the all-time series with the Rams, 64-22-2, including 10-6 in Denver.

CU is seeking a third consecutive win in the series, something neither team has done since CU won three in a row from 2003-05.

Last year, CU routed the Rams, 44-7, as quarterback Sefo Liufau threw for 318 yards and a touchdown and ran for 66 yards, running back Phillip Lindsay ran for 95 yards and two touchdowns and the defense held CSU to 225 yards in total offense.

CU (10-4, 8-1 Pac-12 South) is projected by many publications to reach a bowl game for the second consecutive season. CSU (7-6, 5-3 Mountain West) is seeking a fifth consecutive bowl appearance and is expected to compete for a conference title.

Season tickets, single-game tickets and three-game mini-plans for CU are currently on sale.