Career
Born in Nuoro, Sardinia, Capello started his career at Sardinian side Cagliari. In 2002-2003 season, due to the suspension of Armando Pantanelli, he played as Paolo Mancini"s backup on 26 January 2003 against Venezia. He was the third keeper behind Gennaro Iezzo and Fanis Katergiannakis in 2004-2005 Serie A season.
In January 2005, he left for Belluno in exchange with Luca Tomasig.
In August 2005, he left for Olbia in co-ownership deal. In January 2007, he left for Nuorese.
In 2008-2009 season, he played for Alghero and in 2009-2010 season for Serie Doctorate side Budoni. In July 2013 he joined Savona as goalkeeping coach, however he also played once for the first team
In December 2013 he returned to Sardinia and worked in the Fire Department.
International career
In 2004, he was call-up to the Italy U20 team (U21 feeder team) and played 3 times. In 2005 he was called to Italy U21 B team specially for 2005 Mediterranean Games, for a preparation match against Serie Doctorate Best XI. He played his only match with the team against Morocco.