This forward was adored, then hated, but since forgiven and now fondly remembered.
The Spaniard arrived from Atletico Madrid for just over £20 million in 2007, and made an immediate impact with the Reds, as he found the net on 33 occasions in all competitions in his first season at the club - only Cristiano Ronaldo at Manchester United was ahead of him in terms of goals scored that season.
After his first season on Merseyside he would end up scoring the winning goal in the final of Euro 2008 as Spain beat Germany 1-0 in Vienna. He also went on to record a second European Championship crown in 2012, with a World Cup winners' medal sandwiched in between from 2010.
Though he never really had goalscoring record from his first season for the rest of his time at the club - a lot of the time due to injuries he would pick up, mostly on international duty, the Reds were a more feared side with him in the starting XI, and he formed a fearsome partnership with Steven Gerrard. His goalscoring record was an excellent 81 goals from 142 games.
Success at club level always eluded him at Liverpool. He helped the Reds finish second in the Premier League in 2009, reached a Champions League semi-final in 2008, and the Europa League semi-final in 2010 while working under Rafa Benitez. He struggled under Roy Hodgson's management, while his time under Kenny Dalglish was incredibly brief.
He left for a record fee of £50 million to Chelsea in 2011 and became something of a hate figure for a while. That has since subsided, as he was welcomed back to Anfield with a rapturous reception in a charity game in 2015. His time at Chelsea was never good for him - though he did record success in the Champions League, FA Cup and Europa League, and a failed loan spell at AC Milan would follow.
Now he's back home at Atletico Madrid. Though he isn't the formidable forward that Liverpool had, he's proving himself to at least perform a good role for Diego Simeone's side.