|Date of birth||21 May 1977|
|Place of birth||Turin, Italy|
|Height||1.82 m (6 ft 0 in)|
|* Senior club appearances and goals counted for the domestic league only.
Scaglia started his professional football career as an 18-year-old with Salernitana. Failing to break into the first team, he joined U.S. Alessandria Calcio 1912, spending seven seasons with them before moving to Serie B side A.C. Ancona. He had limited game time with Ancona, so returned to Serie C1 with ACF Fiorentina in January 2003, helping them to promotion that season. He then joined A.S. Bari as part of Jaime Valdés's deal.
Massimiliano is the brother of Valentina Scaglia, a professional ballet dancer based in the Netherlands.
- "Salernitana Player roster 1994-1995". FootballDatabase.Com. Retrieved 2008-10-14.
- Dunn, Alex (4 August 2004). "Viola sign Chilean". Sky Sports. Retrieved 11 July 2010.
- "Player Profile: Maxi Scaglia". ZeroZero. Retrieved 2008-10-14.
- "II VIVA World Cup 2008: Padonia". VIVA World Cup. Retrieved 2008-10-14.
- Tutto Lega Pro (in Italian). 8 July 2010 TLP- Verona, è fatta per Scaglia http://www.tuttomercatoweb.com/legapro/?action=read&idnet=dHV0dG9sZWdhcHJvLmNvbS05NDUxESCLUSIVA TLP- Verona, è fatta per Scaglia Check
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