Manchester derby day used to be an occasion to relish for Sergio Aguero.
It was one of eight goals in his first eight outings in matches between the blues and the reds as City went from being Sir Alex Ferguson's noisy neighbours to the top side, not just in Manchester but also in England across the eight seasons that followed.
Although Aguero has scored only once in his past six derby appearances, under normal circumstances few would dismiss his chances of getting the goal that would move him level with Joe Hayes and Francis Lee as City's highest scorers against United, or the three that would see him move past Wayne Rooney as the most prolific player from either side in these momentous duels.