|Date of birth||30 August 1983|
|Place of birth||Venice, Italy|
|Height||1.79 m (5 ft 10 1⁄2 in)|
|Playing position||Right Winger, Forward|
|2002–2004||→ Avellino (loan)||26||(1)|
|* Senior club appearances and goals counted for the domestic league only.
Born in Venice, Veneto, Vianello started his career with A.C. Milan. In 2002–03 season he was loaned to Avellino and won Serie C1 champion. In July 2003, his loan was extended and Milan also loaned Matteo Contini, Vitali Kutuzov to the Campania side. In January 2004, he left for Sora along with Gianpaolo Parisi.
He then spent all of his career in Italian Lega Pro divisions. In August 2009 he was signed by Gela along with Evangelista Cunzi. In July 2010 he was signed by newly promoted Seconda Divisione club Avellino. He made his first start since left the club 6½years ago on 15 August 2010, a 0–0 draw with Neapolis Mugnano in 2010–11 Coppa Italia Lega Pro.
- "Torino: Rossi aspetta i rinforzi e spera nel recupero di Walem". La Gazzetta dello Sport (in Italian). 3 January 2004. Retrieved 31 October 2010.
- "Arrivano Cunzi e Vianello". Gela Calcio (in Italian). 12 August 2009. Retrieved 31 October 2010.
- "Raggiunto l'accordo con l'attaccante Marco Vianello". AS Avellino 1912 (in Italian). 13 July 2010. Retrieved 31 October 2010.
- "Coppa Italia: Neapolis-Avellino 0-0". Voce Sport (in Italian). 16 August 2010. Retrieved 31 October 2010.