First-year head coach Corey Mace and his undefeated Saskatchewan Roughriders will meet their toughest matchup yet this week.

Saskatchewan (4-0) visits the B.C. Lions (4-1) on Saturday night in a battle of the West Division’s top teams. The Riders are undefeated through four games for the first time since 2013, while the Lions are 2-0 at BC Place this season and have won four straight.