Barca were keen to tie Dembele down to a new contract before letting him leave on loan in order to protect his transfer value, but the winger's refusal to pen a new deal scuppered their plans to both offload him and bring in Memphis Depay as a replacement.
Barcelona are still trying to convince Dembele to sign an extension, but Spanish outlet Sport reports that they are ready to slash their asking price in January should he refuse again.
The Frenchman would be available for a cut-price fee of £45m - less than half the £97m Barcelona paid to sign him from Borussia Dortmund just three years ago.
Dembele's current deal does not expire until 2022 but Barcelona are desperate to offload him either on a temporary or permanent basis in order to trim their wage bill.
The attacker has featured for just 20 minutes under new Barca boss Ronald Koeman so far this season and has been limited to only 52 La Liga appearances in total since joining the club. body check tags ::