CFL: Five Roughrider storylines to watch as the top two CFL teams clash at Mosaic  CTV NewsTrevor Harris leads Saskatchewan Roughriders past Mitchell’s Tiger-Cats in battle of CFL’s best  TSNRiders’ front shuts down high-octane Ticats  CFL.caROBSERVATIONS: Roughriders give the fans a hand … “my dad!” … fine line from 59  Saskatchewan RoughridersRoughriders defeat Ticats in top team showdown on Saturday  CBC