Manchester City head physio Lee Nobes will leave the club after 11 years to join Premier League rivals Liverpool following the international break.
Liverpool had been seeking a replacement since Matt Konopinski left to join the Football Association last month, and Nobes was their first choice.
Nobes previously worked at Oldham Athletic before joining City when Sven-Goran Eriksson was manager in 2007. He has gone on to serve Mark Hughes, Roberto Mancini, Manuel Pellegrini and Pep Guardiola.
The process of appointing Konopinski's replacement was already at an advanced stage when he left Liverpool after almost a decade of service in early October, with Nobes touted as a strong candidate.
Academy physio Paul Squires has been promoted to first team duties in recent weeks to maintain Liverpool's quota of fitness staff, though it remains to be seen if he will stay with the first team now that Nobes has been appointed.
Nobes will work closely with Liverpool's head of fitness and conditioning Andreas Kornmayer, head of medical services Andrew Massey and the club's medical rehab and performance manager Philipp Jacobsen.
Nobes will reunite with a couple of familiar faces at Melwood, having worked with James Milner and Daniel Sturridge during their time at the Etihad Stadium.