When the 32-year-old Argentina striker found the net with a penalty in Wednesday’s 3-1 comeback win against Porto, it was for his 40th Champions League goal, with all but five of that haul coming for his current club. Aguero joins an elite list of marksmen, becoming only the 14th player to reach that landmark since the competition was rebadged in 1992. He has now hit a total of 255 goals in 372 games for City, extending his record as the club’s record scorer. But, while his phenomenal haul cannot be questioned, his wider impact on the Champions League is somewhat less convincing when you compare it to the company he is keeping at the top of its scoring charts – all but two of the players above him have won it at least once.