Inter Milan chief Piero Ausilio is delighted with the emergence of Assane Gnoukouri.
The 18 year-old saw action in yesterday's 0-0 draw against AC Milan.
"It's a great story to see this 18-year-old in his first Inter season, to go from 10 minutes against Verona to making his first start in a derby," Ausilio told Sky Sport Italia.
"The lad has quality and Mancini has been thinking about this all week, so it was a well-considered decision."