Manchester United will look to Ajax's Andre Onana, if David De Gea does leave this summer.
The Spanish goalkeeper now has just over a year left on his contract, amid interest from Juventus and Paris Saint-Germain.
That is likely to pressure United into selling De Gea if they do get a sufficient offer from either, and the club has made contingency plans in case that happens.
They are aware of Jan Oblak's interest and rate him highly, but sources see it as unlikely the club would pay so much for a goalkeeper in this window, as they prioritise other areas in an overhaul.
The Slovenian would cost around £100m.
Onana - who would be available at around £40m - is United's first choice, although Barcelona's Jasper Cillesen has also been made available to them.