The 16-year-old has agreed a three-year deal with the Blues.
Prosenik was also being tracked by AC Milan, Juventus, Roma and Bayern Munich.
“It is a dream coming true for me,” he told Oberosterreichische Nachrichten.
The 16-year-old has agreed a three-year deal with the Blues.
Prosenik was also being tracked by AC Milan, Juventus, Roma and Bayern Munich.
“It is a dream coming true for me,” he told Oberosterreichische Nachrichten.
