The Morocco international has returned to Serie A on a temporary basis from Portuguese side Benfica, having already had a spell at AC Milan
Genoa have completed a loan deal for Benfica forward Adel Taarabt as the club seeks to end a dismal run of form and climb into the top half of Serie A.
The Rossoblu have lost four of their last five domestic matches and failed to score in three of those, but coach Ivan Juric will hope the arrival of playmaker Taarabt enhances his side's attacking threat.
Morocco international Taarabt started his career at Lens, before making a name for himself when Tottenham Hotspur loaned him out to Queens Park Rangers in the English Championship.