Albert Riera has completed his move to Olympiacos, the Greek club have announced.
The Spanish winger was presented to media on Friday after fans lined the streets to welcome his arrival at the Athens club.
The 28-year-old fell out of favour at Anfield last season after an outspoken attack on former manager Rafael Benitez and describing the Reds as a "sinking ship".
Reports claim the deal is worth Â£3.3million and that Riera has signed a four-year contract.
Riera joined Liverpool from Espanyol two years ago but failed to impress regularly, scoring just five goals in 56 appearances.
He was linked with Spartak Moscow last season but his wage demands were thought to have priced him out of a move.