On Sunday night, Sussoulo striker Domenico Berardi became the first player to score four goals against AC Milan in the Rossoneri's 85-year history.
Few outside Italy had ever heard of the 19-year-old, who signed for Juventus but was loaned back to Sassuolo at the start of the 2013/14 campaign, before this season.
But the talented Berardi now sits second in the Serie A top scorer charts after his four-goal haul, which even resulted in AC Milan sacking their beleaguered coach Max Allegri this morning.
But which other young stars in European football have announced themselves to the wider world this season?
Here are seven breakthrough stars from the 2013/14 campaign...