Sergio Aguero will announce his retirement on Wednesday less than six months before his arrival at Barcelona, reports Guillem Balague.
The 33-year-old has struggled with injuries and health problems since moving to Spain, making just five appearances for the Catalans.
In his last match, on 30 October, he was replaced and taken to the hospital after complaining of “chest pains”.
Aguero ends his career with 427 goals in 786 games.
A Premier League legend
Even though Aguero’s stint at Barcelona didn’t go according to plan, there is no question about his status as one of the best strikers of the 21st century.
After starting with Independiente in Argentina, he moved to Atletico Madrid, winning the Europa League in 2010 and scoring 101 goals in 234 appearances.
That record attracted the interest of a rising Manchester City, who paid £ 38m to take him to the Etihad Stadium. He would become a legend of the club and the Premier League during a 10-year spell in England.
Aguero left City in the summer after breaking the all-time goal record, with 260 goals in 390 games, including 16 hat-tricks.
He is the highest-scoring overseas player in Premier League history with 184 goals, nine more than France and Arsenal great Thierry Henry.
Only Alan Shearer (260), Wayne Rooney (208) and Andrew Cole (187) scored more in the competition.
But no one has a better record of minutes per goal than Aguero in the Premier League. He averaged one goal every 107.9 minutes. Of the players who have scored more than 15 goals, Henry is next on the list with one every 121.8 minutes.
The Argentine is also responsible for arguably the Premier League’s most iconic moment, scoring with virtually the last kick of the 2011-12 season to seal a win over the Queens Park Rangers which earned Manchester City their first top flight title since 1968 and denied fierce rivals Manchester United for goal difference.
He would go on to win five Premier League titles, an FA Cup and six League Cups during his time in England.
A sad end with Barcelona
Aguero’s close friendship with fellow countryman Lionel Messi meant the move to Barcelona was attractive after it became clear he would be allowed to leave Manchester City.
He had conquered city boss Pep Guardiola, who initially had doubts about the attacker’s ability to adapt to his playing style, but injuries limited Aguero’s playing time during his final season at Etihad Stadium.
But the move to Barcelona went wrong from the start. The club’s financial woes have resulted in problems with registering their new signings, including Aguero.
And those same problems led to Messi’s departure at Paris St-Germain.
When Aguero was finally registered, he suffered a calf injury that kept him out until October.
He scored a consolation in the 90th minute in his only El Clasico appearance against Real Madrid on 24 October, and three days later he made his first start for the club.
But his retirement against Alaves on 30 October was followed by a “heart exam” and Aguero said on social media that he would follow doctors’ advice in making a decision about his future as a player.
He said it would take him 90 days to assess his progress, with reports suggesting he had been diagnosed with a cardiac arrhythmia, an irregular heartbeat.
But his decision, which will be announced this week, came sooner than expected.
His latest contribution to Argentina came at the summer Copa America, a substitute appearance in the quarter-final win against Ecuador as La Albiceleste went on to win the trophy for the first time in 28 years.