The CFL Labour Day Classic football game between prairie rivals isn't just a gridiron contest, it's also become a battle of the billboards.

A billboard the Winnipeg Blue Bombers put up in Regina pokes fun at the difference in the records of the Saskatchewan Roughriders and Bombers, noting '7 wins 1 loss for Winnipeg ... 1 and 7 for the Riders.'

Similarly, staking out ground in the Bombers heartland, the Roughriders placed a billboard at Route 90 and Silver Ave. in the Manitoba capital inviting Bomber fans to Take the Rider Oath to support the Green Riders through thick and thin.

Bombers show their Saskatchewan neighbours some love with this sign in Regina. ((CBC)) Riders show their pride in Bombers' heartland with this sign in Winnipeg. ((CBC))

The teams square off Sunday in the first of back-to-back early September meetings. Next week, the teams play again at Winnipeg's Banjo Bowl.