Sergio Agüero is "keeping positive" as he awaits word on whether he would be forced to retire due to a heart condition. According to reports from Catalonia published on Friday, Agüero's playing career may be cut short due to an abnormal heartbeat. The Argentina international first felt chest pain in Barça's 2-2 draws with Alavés on October 30, which was later diagnosed as a cardiac arrhythmia by the club. Agüero was ruled out for three months after having testing. He has only started two games for the LaLiga giants after signing on a free transfer from Manchester City. According to Catalunya Radio, the situation is worse than first thought, and Agüero, who is 33 years old, may have to retire. credit - asenglish.com However, the former Atlético Madrid striker denied this on Twitter on Friday, stating that his future will not be decided until at least February. In the tweet, he said: “Given the rumors, I will tell you that following advice from the club doctors, I will do further tests and treatment and see what my progress is in 90 days. Always positive.” Since joining the Catalan club in the summer, Agüero has only appeared four times for the club, scoring one goal. In last month's Clásico match against Real Madrid, he scored his only goal, a late strike that proved to be nothing more than a consolation in Barca's 2-1 loss. Prior to joining Barcelona, Agüero set a club record with 260 goals in 390 appearances for Man City, including the club's memorable last-gasp victory against QPR in 2011-12, which clinched the club's first Premier League title. The Buenos Aires native also spent three years with Independiente and five years with Atlético.