Liverpool still have no plans to recruit a centre-back this month and have had a long-held belief that Fabinho can operate adequately in the position, sources have told ESPN FC.
Liverpool manager Jurgen Klopp is short of options in the heart of defence due to mounting injuries. Fabinho, who normally plays in midfield, operated as a centre-half in the FA Cup third-round defeat to Wolverhampton Wanderers on Monday, with Virgil van Dijk rested and Joel Matip and Joe Gomez still sidelined through injury.
Fabinho could play in the position again at Brighton and Hove Albion on Saturday as there are serious doubts about the fitness of Dejan Lovren, who came off injured at Wolves after five minutes.
January 2016, during Klopp's first season in charge at Anfield, Liverpool signed Steven Caulker on loan from Queens Park Rangers to provide relief amid an injury crisis.
Speaking in December, Klopp questioned whether any January short-term fixes to his centre-half situation would have the required qualities for his Premier League title-chasing side.