Thiago will wear the No.6 jersey for Liverpool once he completes his move from Bayern Munich, according to reports.
The Premier League champions are finally closing in on a deal for the 29-year-old after agreeing a €30 million (£27.2m) fee with Bayern Munich.
According to The Times, Thiago has agreed to sign a four-year contract with Jurgen Klopp’s side and the midfielder will take the vacant No.6 shirt.
Liverpool’s No.6 was worn for six years by Dejan Lovren, who left Anfield to join Zenit in July.
Thiago, meanwhile, has worn the No.6 for Bayern since he was signed from Barcelona in 2013.
During his time in Germany, Thiago has won seven Bundesliga titles and ended his stint this summer by helping the club win the Champions League.
But the midfielder was keen to leave Bayern before the end of the transfer window after failing to agree a new deal with the club.
Thiago’s current contract with the Champions League holders is due to expire at the end of the season and Bayern are unwilling to allow him to leave as a free agent next year.
Manchester United have also expressed an interest in a deal but Ole Gunnar Solskjaer’s side were put off by the midfielder’s wage demands.