Manchester United are locked in talks with Yann Sommer about a Bosman move.
The Switzerland international is off contract at Borussia Monchengladbach at the end of the season.
ESPN says United have commenced talks with Sommer's representatives about a pre-contract arrangement.
United face a major overhaul of their goalkeepers department in 2023, with Dean Henderson and Tom Heaton set to leave.
Martin Dubravka, on-loan from Newcastle is also due to return to Tyneside.