Sky Sports News say Hoffenheim value Tottenham-linked defender Jeremy Toljan at around £13m.
The Germany Under-21 right-back has been touted as a possible replacement for Kyle Walker, who recently left north London for Manchester City.
Tottenham are said to be eyeing Tolijan, 22, although they have not made an approach.
Sky say Spurs are interested and that a number of other clubs have made enquiries about the player.
Meanwhile, Jadon Sancho’s future at Manchester City is in doubt after he missed training, with Tottenham and Arsenal interested in signing the youngster, the Daily Telegraph say.
Sancho, who has been linked with both north London clubs in recent weeks, is reported to have missed training since being left out of City’s squad for a pre-season trip to the United States.
Tottenham are reported to be particularly interested – the Telegraph say Spurs wanted Sancho included in the deal that saw Kyle Walker join City this month, but City refused to agree.
Arsenal are also said to have been tracking the player.
The Daily Mail again suggest Spurs are keeping tabs on Demarai Gray but say they are unwilling to pay Leicester’s asking price, which is apparently in excess of £20m.
Liverpool are interested in Arsenal transfer target Thomas Lemar, according to French outlet Le10Sport.
Arsenal have been tipped to sign the France international despite reportedly having bids for him rejected by Monaco.
But it is claimed that Liverpool are now pursuing a potential deal to sign Lemar.
Chelsea are set to make a £25m move for Arsenal’s Alex Oxlade-Chamberlain and want to turn him into a wing-back, according to the Daily Express.
And the Mail say Arsenal’s attempted squad clear-out has been delayed by players unwilling to take pay cuts to leave.
The Gunners are reportedly keen to offload Jack Wilshere, David Ospina, Kieran Gibbs, Carl Jenkinson, Lucas Perez, Calum Chambers and Mathieu Debuchy.