Middlesbrough are eyeing Newcastle goalkeeper Karl Darlow.
The Sun says the Englishman has largely been playing back-up to Martin Dubravka.
The shot-stopper has a contract at the Magpies until the summer of 2025.
Newcastle have been linked with a move for Paris Saint-Germain keeper Keylor Navas.
Leicester's Daniel Iverson is also being tracked by Boro.
After two seasons on loan at Preston, Iverson has attracted interest from a number of clubs.