Chelsea are working to add more quality to their roster this summer. Manager Thomas Tuchel is looking to fight for the Premier League next season after finishing third last campaign.Meanwhile, former Aston Villa striker Gabriel Agbonlahor believes Tuchel might not prioritise a move for Cristiano Ronaldo this summer. Elsewhere, the Blues have reportedly agreed a £47.5 million deal with Manchester City to sign Raheem Sterling.On that note, here's a look at the key Chelsea transfer stories as on July 10, 2022:Thomas Tuchel unlikely to prioritise Cristiano Ronaldo move, says Gabriel AgbonlahorCristiano Ronaldo could be on the move this summer.Gabriel Agbonlahor believes Thomas Tuchel would prefer Raheem Sterling and Raphinha ahead of Cristiano Ronaldo. The Portuguese is expected to leave Manchester United this summer, and Chelsea have been linked with a move for the 37-year-old.Vince™@Blue_FootyThomas Tuchel is reluctant to bring Cristiano Ronaldo to Chelsea in case it disrupts his plans for a free-flowing attack next season.{Dailymail}7549360Thomas Tuchel is reluctant to bring Cristiano Ronaldo to Chelsea in case it disrupts his plans for a free-flowing attack next season.{Dailymail}Speaking to Football Insider, Agbonlahor said it is the new Blues owners who are pushing for Ronaldo and than Tuchel.“For me, if you’re a Chelsea fan you would rather have Sterling and Raphinha over Ronaldo. Sterling’s quick; he can press, score goals. Raphinha’s the same. They’ve got more legs. Ronaldo, yes, he scored goals last season, but there were games where he offered nothing at all apart from getting a goal," said Agbonlahor.He added:"I think Thomas Tuchel’s targets will be Sterling and Raphinha, and maybe the owner is looking at it and thinking ‘I want a bit of Ronaldo at Chelsea’. It’s a bit of a strange one, and it’s disappointing from Ronaldo. He’s definitely ruining his legacy to jump ship from a club he only joined last summer. It’s the Ronaldo show.”Chelsea reportedly agree £47.5 million deal to sign Raheem SterlingRaheem Sterling will ply his trade at Stamford Bridge next season.Chelsea have agreed a £47.5 million deal with Manchester City to sign Raheem Sterling, according to The Athletic. The Englishman is surplus to requirements at the Etihad, and the Blues are ready to offer him a new home. Sterling has already agreed personal terms with the Blues for a five-year contract, with the option of an additional year.David Ornstein@David_Ornstein Chelsea reach total agreement with Man City to sign Raheem Sterling in deal worth £50m. 27yo winger to join on 5+1yr contract. #CFC working through logistics of organising medical in London & if all goes to plan he’ll join USA tour @TheAthleticUK #MCFC theathletic.com/news/chelsea-s…232783547🚨 Chelsea reach total agreement with Man City to sign Raheem Sterling in deal worth £50m. 27yo winger to join on 5+1yr contract. #CFC working through logistics of organising medical in London & if all goes to plan he’ll join USA tour @TheAthleticUK #MCFC theathletic.com/news/chelsea-s…The London giants are working to schedule a medical for the 27-year-old. Once the formalities are complete, he's likely to meet up with his new teammates for the pre-season tour. Sterling has registered 131 goals from 339 games across competitions for the Cityzens over seven seasons.Blues prepare €9.5 million salary package for Kalidou KoulibalyKalidou Koulibaly (right) is wanted at Stamford Bridge.The Blues are ready to offer Kalidou Koulibaly an annual salary of €9.5 million, according to La Repubblica via Caught Offside. The Senegalese defender has entered the final year of his contract with Napoli. With the 31-year-old not planning to extend his stay, the Serie A giants are willing to cash in on him this year.The Blues are eager to secure his signature as they look to address the void left at the back by the departures of Antonio Rudiger and Andreas Christensen. Juventus are also monitoring Koulibaly with interest, but their salary offer is €3 million less than the London giants'. As such, a move to Stamford Bridge could be on the cards for the Senegalese.