|Full name||Marcelo de Mattos Terra|
|Date of birth||10 February 1984|
|Place of birth||Indiaporã, Brazil|
|Height||1.79 m (5 ft 10 1⁄2 in)|
|Playing position||Defensive midfielder|
|2002||→ Oita Trinita (loan)||1||(3)|
|2009–2010||→ Corinthians (loan)||8||(0)|
|2010–2011||→ Botafogo (loan)||20||(1)|
|2016–2019||Vasco da Gama||16||(1)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 28 March 2019|
He is known for his positioning, tight marking of the opposing player and the ability to bring the ball forward to other offensive players.
Marcelo was born in Brazil where he began at Mirassol a third division club in Brazil he then left for FC Tokyo in the J1 League. After exceptional performances he transferred to Associação Desportiva São Caetano where he then left for Sport Club Corinthians Paulista. At Corinthians, Marcelo established himself where he excelled alongside Carlos Tevez and Javier Mascherano being dubbed the team of the year after the trio won the Championship.
He was part of the Brazilian team that played at the FIFA U-17 World Championship 2001. At that time he was with Mirassol and impressed so much that FC Tokyo signed him.
Marcelo Mattos has signed for Greek team Panathinaikos for 3 million euros on 6 July 2007 in a 4-year deal. In July 2008, Panathinaikos acquired the 85% of the players ownership for a fee of 3 million Euros. The rest of the player's percentage belongs to his agent, Pini Zahavi.
On 26 August 2009 Corinthians announced a one-year loan deal with Panathinaikos.
On 20 July 2010 he was announced as a player of Botafogo. On 3 July 2011 he was sold to Botafogo for 1 million Euros
|2002||FC Tokyo||J1 League||1||0|
|2002||Oita Trinita||J2 League||1||0|
|2003||São Caetano||Série A||31||0|
|2005||Corinthians Paulista||Série A||35||6|
|2009||Corinthians Paulista||Série A|
- São Caetano
- Campeonato Paulista: 2004
- "Ainda lesionado, Marcelo Mattos faz falta ao Bota". LanceNet. Archived from the original on 7 March 2014. Retrieved 28 August 2012.
- "Brazilian prodigy joins Panathinaikos". UEFA.com. 18 July 2007.
- "Em 2005, melhores do Campeonato Brasileiro recebem prêmio Craque do Brasileirão" (in Portuguese). Globo Esporte. 6 December 2005. Retrieved 29 September 2016.