Hoffenheim are reportedly not prepared to sell Niklas Sule to Chelsea in the January transfer window.
Chelsea were strongly linked with a move for the 21-year-old in the summer, but it is understood that the two clubs could not agree a price for the highly-rated German international.
Last month, it was claimed that the Blues would return with a bid for the centre-back at the start of 2017, but according to Sky Sports News, Hoffenheim will not do business in the middle of the campaign.
Chelsea have also been linked with a move for Burnley centre-back Michael Keane as Antonio Conte prepares to sign a new defender to boost his team's title challenge.
