It has come down to a straight shootout, similar to five rounds of penalties, the equation plain yet loaded with complications. Score or miss. With Manchester City otherwise engaged in an FA Cup semi-final , it was Arsenal who took first. For them, the metaphorical walk to the spot, the moment of truth, began in the aftermath of last Sunday’s defeat at City . It was long and treacherous, the self-doubt gnawing away, the outside noise at fever pitch. Score or miss. With a draw very much into the latter category. Arsenal scored. The moment that decided it came in the ninth minute and what a goal it was, completely out of keeping with the overall sweep of another fraught occasion. When Eberechi Eze received the ball on the right-hand edge of the area after Noni Madueke and Kai Havertz had worked a short corner, he made the calculations to curl first-time for the far, top corner. He pulled it off perfectly.…