By Neil Moxley Dateline: opening game of last season. Venue: Stadium of Light. Coventry City are trailing Sunderland by one goal going into the final ten minutes. A ball is played into Viktor Gyokeres, 35 yards from goal. The Black Cats’ defenders have allowed the Sweden international to turn – it’s a big mistake. He does so, brushing off one who is left trailing in his wake. He sidesteps another and unleashes a blistering right-foot drive into the bottom corner with real venom. “That,” shouts co-commentator, Don Goodman, “is brilliant.” Ask any Sky Blues supporter about Gyokeres and they will…