During the 2010–11 Serie A2 season, Junior Casale won the regular season and went to the playoffs when they achieved the historical promotion to Lega Basket Serie A, the highest-tier level professional league in Italy.
On 9 October 2011, in Sassari, it was the first time for Ferrero in Serie A where he got 8 points. In March 2012 he was sent on loan again to Conad Bologna (Serie A2).[1]
In 2012-13 Serie A season, he returned to Casale (Serie A2), where he reached the 3rd place in regular season and the playoffs' semi-finals.
In 2013 he went to Pallacanestro Trapani, again in Serie A2. He became the team captain of Trapani also in 2014–15 Serie A2 season.[2]
Giancarlo Ferrere made his debut in the Italy national basketball team in 2009, when he played 4 matches with 28 points. He went to the European Under-18 and Under-20 Championships in 2006 and 2008. In the youth national teams he played 37 matches with 228 points. In 2012 he was summoned to the Senior national team for the friendly matches against Greece and France in Folgaria and Rome.[6]