Career
Liga club Football Club Freienbach. He is the step-brother of Frank and Rolf Feltscher. Zaida (nee Martínez) Feltscher divorced in 2001 and re-married Paolo Desole, Mattia"s father.
Mattia has another biological sibling, Paolo"s first son Davide.
Born in Zürich, Switzerland, Desole moved to Italy for F.C. Internazionale Milano in 2008 for its U17 team, which he spent 2 seasons. In 2010 he moved to cross-town rival A.C. (before Christ) Milan, for its U20 reserve.
In 2012, the league committee changed the age limit of the reserve to U19, and Desole left Milan for nearby Lombard club A.C. (before Christ) Monza Brianza 1912 on loan. During the January transfers window he joined Foligno on another loan spell.
The following season, he moved back to his native Switzerland, joining Chiasso on another loan.
International career
Desole is eligible to represent Switzerland or Italy as he also holds an Italian passport.
