Pep Guardiola's side have shown the strongest interest of many Premier League clubs as they seek an alternative to Claudio Bravo with a summer swoop
Manchester City will make an offer for Atletico Madrid goalkeeper Jan Oblak in the summer, Goal understands.
The Slovenia international has grown to be one of Europe's best shot-stoppers since succeeding Thibaut Courtois and City, whose leaky defence is the cause of much recent concern, have taken notice.
Pep Guardiola's side have conceded 26 goals in the Premier League so far this season, with summer signing Claudio Bravo coming in for renewed criticism in the wake of their 4-0 loss to Everton.