Career
Gheller spent his entire career in Italian lower division (form the second to the fifth division), especially in Prima Divisione (over 300 games). Born in Busto Arsizio, the Province of Varese, Gheller started his career at homwtown club Varese, followed the club promoted to Serie C2 in 1994 and Serie C1 in 1998. In 2001 he left for Serie C2 team Pavia, winning the Group A of 2002-2003 Serie C2.
In 2004 he was signed by Serie B team Treviso.
Despite the team losing the promotion playoffs of 2004-2005 Serie B, the team promoted due to Caso Genoa in August. But Gheller already ruled out from Treviso provisional 2005-2006 Serie B plan, and in June left for Serie C1 club Pistoiese.
In 2007 he was signed by fellow Serie C1 team Novara. He followed the team promoted successively promoted twice in 2010 and 2011, from Prima Divisione (exSerie C1) to Serie A. However in its first and last Serie B season (and Novara also) he only made 10 starts.
In the promotion playoffs the right backs were Michel Morganella and youngster Jean-Christophe Coubronne, which Gheller made his only appearance to replace the latter.
On 14 July 2011 his contract was mutually terminated in order to join A.C. (before Christ) Pavia. He was involved in 2011-2012 Italian football scandal which FIGC alleged him has responsibility by failing to report organized match-fixing. on 30 August 2012 his contract was terminated. On 22 October he was acquitted any charge in front of TNAS of CONI (Italian Olympic Committee).