Osimhen will have to take a pay cut in order to facilitate a transfer. He probably wants to play for a top team in one of the top European leagues but in order for that to happen both the club and the player must make compromises.
Regarding Sterling, I think he is not the same now as he was when he had that right side attacking role at Manchester City. His career in the Premier League is probably over because no team wants to buy him.
We can't afford his wages but hopefully another top side would be willing to and Napoli too needs to help him by lowering his release clause; no European top side are willing to pay €75m for someone with less than two years left on his contract. It rediculose.
As for Sterling no danm club would accept a sell-on clause on a 30 yr old player. If he accepts to play in Saudi it would be easy to ship him for a good fee.