Petrovic is potential goal keeper, but he's so reluctant in competing in Chelsea for the number one. It's wise for him leaving from blues, then join Bournemouth to get minutes. He's flinch to be at Chelsea, and so this is his best decision. Selling him is also helping Chelsea to bail out UEFA's sanction. It's a win - win solution for both of sides.
He got a new club, and blues got almost 15m profit + release from UEFA sanction. It sounds good, right?
He could have actually got the shirt from Robert Sanchez if he was more patient. Or am I thinking wrong? Because I don't know how Chelsea's attitude was against him.
I want to believe that Petrovic won't turn out to be a goalkeeper like Kepa later on.

He also played for a season at Bournemouth and didn't end up well after. For now, Petrovic seems more promising than him...