The 29-year-old was omitted from the City squad beaten by Championship leaders Fulham yesterday, with manager Michael O’Neill later confirming he had been granted permission to travel to South Yorkshire.
“Adam is undertaking a medical and, if that progresses, then he will leave the club,” O’Neill admitted. “We had to make a decision with Adam, He’s out of contract at the end of the season.”
United also considered a move for Davies’ team mate Frank Fielding before making the Wales international their preferred choice to succeed former loanee Robin Olsen, who joined Aston Villa earlier this month.
Paul Heckingbottom, the United manager, has previously worked with Davies at Barnsley. United, who climbed to 11th in the table following their victory over Luton Town, also want to strengthen at centre-half before the end of the transfer window.