Some coaches may look at a match between Penn and Columbia's women's soccer teams and ask: How do the Quakers plan on stopping the Lions' potent duo of Sophie Reiser and Ashlin Yahr? But Quakers coach Darren Ambrose looks at it another way: How does Columbia plan on stopping Penn's Sarah Friedman, Molly Weir, Ursula Lopez-Palm and Marin McDermott? Ambrose is confident that when Columbia (8-2-1, 2-0-0 Ivy) visits Rhodes Field for a pivotal Ivy matchup tonight, his Quakers (6-3-1, 2-0-0) "will be able to control the tempo, play at our pace . and essentially impose ourselves.