Chelsea have a genuine ​interest in signing Manchester City striker Sergio Aguero this summer.

The Argentina international is regarded as one of the Premier League's best strikers, scoring an impressive 169 goals in 253 appearances for the Sky Blues after joining from Atletico Madrid back in 2011.

However, his future seemed in doubt towards the end of the season after Gabriel Jesus impressed following his move from Palmeiras, usurping Aguero in City's first choice starting team under manager Pep Guardiola.

Watford v Manchester City - Premier League

​Sky Sports believe Chelsea have a "serious and strong interest" in signing the 29-year-old but add that any potential deal will be difficult for the Stamford Bridge club to complete, with City not eager to sell him.

Aguero is just one target for the Blues, who are also interested in Real Madrid striker Alvaro Morata, Borussia Dortmund speed merchant Pierre-Emerick Aubameyang and Torino star Andrea Belotti after missing on Romelu Lukaku, who has signed for Manchester United for £75m.

When asked if Aguero would stay at City in May, chairman Khaldoon Al Mubarak said: "Absolutely. There's never been a doubt about that. I've read a lot of the speculation on this and it's ridiculous.

"Sergio Aguero is one of the best players in the world. We are a team that aspires to win every competition we compete in.

"Having Sergio Aguero as part of the squad is an absolute must. It has never been in doubt."

Chelsea need to sign a striker after it emerged that Diego Costa had no future at the club despite playing a large role in the Blues' Premier League title triumph last season, scoring 22 goals in all competitions before being told by manager Antonio Conte that he was not in his plans.

City will be one of Chelsea's top rivals for the Premier League title next season, having already spent big this summer in signing attacking midfielder Bernardo Silva, goalkeeper Ederson and right-back Kyle Walker.