Luis Suarez will aim to exploit what he considers a vulnerable Man City defence when he returns to England for the first time as a Barcelona player.
The former Liverpool striker, who moved on to the Nou Camp last summer, has not scored so freely in Spanish football as he did in the Premier League.
But he is relishing a crack on Tuesday night at unlocking Champions League rivals City's backline, picking it out as the soft spot in Manuel Pellegrini's team.
He said ahead of the Etihad Stadium last-16 tussle that City have quality "in midfield and up front, but they also have weakness at the back".
Watch Man City v Barcelona live on ITV on Tuesday from 7.30pm