Pep Guardiola wants Barcelona defender Nelson Semedo to challenge Kyle Walker at Manchester City next season.
City are understood to be open to a swap deal involving Joao Cancelo, the Portugal international who cost £60million from Juventus last summer.
Cancelo has flattered to deceive since, making just eight Premier League starts, and Guardiola believes Walker requires tougher competition at right back.
Swap deals are expected to become more prevalent once the transfer window re-opens, with Barcelona open to moving on a sizeable number of their current squad.