Career
Christian began his career at Atalanta as a youth player. Christian made one Serie B appearance for Atalanta during the 2005–2006 season, and his potential later persuaded Udinese to buy half of his contractual rights for the start of the 2006–2007 season. and exchanged with Fernando Tissone. He was successively loaned out to Pisa during the summer of 2007 transfer window, but failed to make a single appearance with the Tuscan side, being then loaned to Serie C1 team Sassuolo on January 2008.
On June 2008 Atalanta re-signed him from Udinese and loaned him to Hellas Verona.
Tiboni went on trial to Ekstraklasa side Wisła Krakow in July 2010. Later he signed one year loan contract + the option for another two for the Bulgarian side CSKA Sofia on 29 July 2010, becoming the fourth Italian player they signed that summer.