Since he handles the line, use tall defenders to manage crosses.
Once you have the Gianluigi_Donnarumma_Prince_Shieka.rar file, follow these steps to get him in your squad: Download Gianluigi Donnarumma PES2017 Prince Shieka rar
Set his training focus to "Goalkeeping" to max out his Reach and Reflexes early. Since he handles the line, use tall defenders