Ronaldo was different deal and made a different impact, for example:
"The Ronaldo
effect was immediate. The club gained around 5m new social media followers within 24 hours of the deal being announced. In his first season, Juve’s revenue grew by some €58m ($68.4m) from the usual sources (stadium, commercial deals, merchandising); the club sold 1m shirts in 2018/19, more than double compared to the previous year.
In the second, Juve’s existing deals with Jeep and Adidas were renegotiated due to the presence of Ronaldo, rising from €17m ($20m) to €42m ($49.5m) (Jeep) and from €23m ($27m) to €51m ($60m) (Adidas).
In his three years at the club, Juve’s accumulative social media following doubled, from 50m to 113m followers. Ronaldo ultimately brought eyeballs to Serie A, and on this front he was an unequivocal success."
Im not sure if we even want to discuss it or compare, Ronaldo was deal much more than just signing a player, while Dusan doesnt even look like this.