| Marcão | |
| Fullname: | Alfredo Marcos da Silva Junior |
| Birth Date: | 2 April 1986 |
| Birth Place: | Rio de Janeiro, Brazil |
| Position: | Striker |
| Years1: | 2009 |
| Clubs1: | Vila Aurora |
| Years2: | 2009–2010 |
| Clubs2: | Boa |
| Years3: | 2010 |
| Clubs3: | Al Dhafra |
| Years4: | 2010–2011 |
| Clubs4: | Vila Aurora |
| Caps4: | 7 |
| Goals4: | 2 |
| Years5: | 2011 |
| Clubs5: | Trindade |
| Years6: | 2011 |
| Clubs6: | São Carlos |
| Years7: | 2011–2012 |
| Clubs7: | Westerlo |
| Caps7: | 5 |
| Goals7: | 1 |
| Club-Update: | 21 January 2012 |
Alfredo Marcos da Silva Junior, known as Marcão (born 2 April 1986), is a Brazilian professional footballer who most recently played for Belgian club Westerlo, as a striker.
Omolo has played club football in Brazil, United Arab Emirates and Belgium for Vila Aurora, Boa, Al Dhafra, Trindade, São Carlos and Westerlo.[1]