Suso made only 14 appearances in the Premier League for the Reds since arriving from Cadiz in 2010 and scored his first and only goal for the club in the Capital Cup in September.
The 21-year-old Spaniard spent last season out on loan at Cadiz, playing 33 matches and scoring three goals where he played over 30 matches.
Liverpool confirmed Suso???s transfer on their website: ???Everybody at Liverpool thanks Suso for his contribution and wishes him all the best for the future.?????