I assume the "sell Aguero" line is prize fishing, but on the off-chance it isn't, let's examine the absurd circularity of this logic. On the pre-match thread, many expressed the view that Celtic were a Championship standard team. That means they are worse than Bournemouth, Swansea and certainly Bucharest against whom Sergio netted 8 goals in 3 games.
Presumably if he had fired and scored a hat trick against Celtic yesterday, then we would have won 6-3 and the same. Trolls would have said "see, can only produce it against cannon fodder like Celtic. And if he had bagelled against Swansea, we would have drawn 1-1 or lost 1-0 and it would have been "see, never turns up in the tough away games"