Before he was two-time world heavyweight boxing champion Rocky Balboa, he was just little Sylvester “Sly” Stallone with the unusually deep voice.
His voice and slurred speech were the result of an injury during childbirth that also caused…

Before he was two-time world heavyweight boxing champion Rocky Balboa, he was just little Sylvester “Sly” Stallone with the unusually deep voice.
His voice and slurred speech were the result of an injury during childbirth that also caused…