| Cadu | |
| Fullname: | Ricardo Frederico Rodrigues Antunes |
| Birth Date: | 1 January 1974 |
| Birth Place: | Rio de Janeiro, Brazil |
| Currentclub: | Fluminense (assistant) |
| Youthclubs1: | Fluminense |
| Years1: | 1994–1998 |
| Clubs1: | Fluminense |
| Caps1: | 114 |
| Goals1: | 1 |
| Years2: | 1999 |
| Clubs2: | Bahia |
| Years3: | 1999 |
| Clubs3: | Kawasaki Frontale |
| Caps3: | 4 |
| Goals3: | 1 |
| Years4: | 2000 |
| Clubs4: | America-RJ |
| Years5: | 2001 |
| Clubs5: | Madureira |
| Years6: | 2004 |
| Clubs6: | Cabofriense |
| Years7: | 2006 |
| Clubs7: | Volta Redonda |
| Caps7: | 8 |
| Goals7: | 1 |
| Years8: | 2007 |
| Clubs8: | Ceilândia |
| Years9: | 2008 |
| Years10: | 2008–2009 |
| Clubs10: | Duque de Caxias |
| Caps10: | 9 |
| Goals10: | 0 |
| Manageryears1: | 2014 |
| Managerclubs1: | Audax Rio |
| Manageryears2: | 2021 |
| Managerclubs2: | Fluminense U23 (assistant) |
| Manageryears3: | 2022 |
| Managerclubs3: | Fluminense U23 |
| Manageryears4: | 2023– |
| Managerclubs4: | Fluminense (assistant) |
Ricardo Frederico Rodrigues Antunes (born 1 January 1974) is a Brazilian football coach and former player who played as a midfielder. He is the current assistant manager of Fluminense.
| Club performance | League | Cup | League Cup | Total | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Club | League | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |
| Japan | League | Emperor's Cup | J.League Cup | Total | |||||||
| 1999 | Kawasaki Frontale | J2 League | 4 | 1 | 0 | 0 | 4 | 1 | |||
| Total | 4 | 1 | 0 | 0 | 0 | 0 | 4 | 1 | |||