Complex sentence: Since then Donnarumma has gained attention in the media for his performances at such a young age as on 28 November, Italian agent, Mino Raiola heaped praise towards Donnarumma, calling him "a work of art".
Split into simpler sentences: Since then Donnarumma has gained attention in the media for his performances at such a young age. On 28 November, Italian agent Mino Raiola heaped praise towards Donnarumma, calling him "a work of art".