Yaya Toure’s future at Manchester City has been put into serious doubt after his agent stated that the midfielder is unhappy with a birthday snub, Daily Mail reports.

The now 31-year-old was irritated that no one wished him happy birthday when his birth-date coincided with title celebrations last week.

Toure’s agent Dimitri Seluk said: “There is a big possibility Yaya will leave this summer. He is very upset. What happened at his birthday means the club don’t care about him. It was proof.

“They can say whatever they want, ‘Oh we like him but we forgot’. Forgot? About Yaya? The player who helped you to be two-times Premier League champions? The guy who helped you win the FA Cup and League Cup?”

“In a normal team, his team-mates and club would at least give him good wishes. But when you win the title and two days later you have a big party to celebrate the title and nobody comes to Yaya to say happy birthday, what more do you want?

“If a player like Yaya went to Liverpool and they won the league for the first time in 24 years, Yaya would be a god in Liverpool,” Seluk told The Sun.

“But at City, Yaya is no hero. He’s nobody. That’s how the club make him feel. He’s very upset and he started thinking about leaving the club. And he will leave if things carry on like this.”

In other matters, City chairman Khaldoon Al Mubarak isn’t worried by the limitations of UEFA’s transfer cap, revealing that the side are well on their way in landing their transfer targets.

The Sky Blues spent almost £100m on summer transfers last year, and Khaldoon said: “Expect the same – but even earlier. We know exactly what needs to be done.”