A deal for either club could prove costly, however, with other reports suggesting that Dortmund could demand a fee of between €70m-80m (£58-66m) for their prized asset. Kobel has made 143 appearances in all competitions since joining Dortmund from Stuttgart back in 2021, while twice being named in the Bundesliga Team of the Season.

Chelsea are keen on signing another goalkeeper amid Robert Sanchez's struggles between the posts, although Manchester United are targeting the same man: Gregor Kobel

Chelsea are in the market for a new goalkeeper and have identified Borussia Dortmund's Gregor Kobel as their top target - but face competition from Premier League rivals Manchester United