TORONTO — FanDuel Canada Day Weekend features a full slate of intriguing matchups, with plenty of storylines taking centre stage across the CFL. In the Weekly Predictor standings, Kristina Costabile and Jamie Nye continue to lead the way at 9-5. Matthew Cauz and Vicki Hall are tied at 5-9, while Patrick Steinberg sits at 4-10 heading into Week 5. Who are the writers backing this week? Let’s find out. FANDUEL CANADA DAY WEEKEND » MMQB: Reasons for optimism across the CFL » Weekly Predictor: Who…