The former Atletico Madrid star wrote: "I have something very important to announce". He is scheduled to hold a press conference on June 23 in Tokyo to explain in detail.
He played 110 games in Spanish national football team and scored 38 goals, winning 2010 World Cup and two European championships, as well.
The 35-year-old Spaniard posted a tweet informing the world that he is wrapping up his professional football career as a player after 18-years.
Asked about the future, Torres told a news conference in Tokyo he would continue in an advisory role for Sagan, likely identifying Spanish youth players for the Kyushu club.
Then followed a £50 million move to Chelsea in 2011 in which he failed to deliver.
His production dipped massively during his fourth season in England, spent between Liverpool and Chelsea, but he notched 22 goals in all European competitions during the Blues' tumultuous run out of the Champions League and onto the Europa League winners' stage.
He hit the ground running with a typically sharp finish against Chelsea on his debut went on to score 24 Premier League goals in his first campaign.
Torres never managed to capture the same Liverpool form at Chelsea however and injuries, combined with a crisis of confidence, often made him look a shadow of his former self.
He also won the FA Cup and scored in their 2-1 win against Benfica in the Europa League final in 2013.
But out of all the fine players he lined up alongside for AtleticoMadrid, Liverpool, Chelsea and of course Spain, he reckons Stevie G was the best of the lot, despite not winning any silverware with the now-Rangers boss.
Torres enjoyed his most successful period at Liverpool where between 2007 and 2011 he scored 81 goals in 142 games.
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