Info
| Last name | Sierra Aguerro |
| First name | Jose-Roberto |
| Nationality |  Spain |
| Date of birth | 21-03-1967 |
| Age | 58 |
| Place of birth | Camargo |
Monuments
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
| 18-04 | 42 |  Liège-Bastogne-Liège (CDM) | |||||
 Paris-Nice (2.1) | |||||||
| 47 |  Standings | ||||||
| 14-03 | Stage 9Nice - Col d'Eze (13.0km) | ||||||
Teams
| Year | Team |
|---|---|
| 1999 | O.N.C.E. - Deutsche Bank |
| 1998 | O.N.C.E. |
| 1997 | O.N.C.E. |
| 1996 | O.N.C.E. |
| 1995 | O.N.C.E. |
| 1994 | O.N.C.E. |
| 1993 | Clas-Cajastur |
| 1992 | Clas-Cajastur |
| 1991 | Clas-Cajastur |
| 1990 | Teka |
| 1989 | Teka |
Victories
| This year | 0 |
| Total | 1 |