Roberto Sierra boxer
- bouts
- 10
- won
- 4
- lost
- 6
- draw
- 0
- Status
- inactive
- Division
- super lightweight
- Debut
- 1994-01-21
- Height
- 5′ 5″/165cm
- Reach
- -
- Age
- -
- Born
- 1974-12-04
- Death
- -
- Nationality
- Puerto Rico
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1996-12-14 | Joel Casamayor | WW | Convention Center, Atlantic City | LOST KO |
| 1996-10-04 | Lemuel Nelson | WWWWWW | Madison Square Garden Theater, New York | LOST Majority decision |
| 1996-04-26 | Johnny De La Rosa | LWWLWL | Music Fair, Westbury | WIN Points |
| 1995-11-15 | Joe Sammambo | D | Robert Treat Hotel, Newark | WIN Unanimous decision |
| 1995-09-30 | Freddy Curiel | WWWWWW | Ballys Park Place Hotel Casino, Atlantic City | LOST Points |
| 1994-09-24 | Luis Rosado | W | Ballys Park Place Hotel Casino, Atlantic City | LOST Technical knockout |
| 1994-07-23 | Chris Christodoulou | WWWW | Center City, Schenectady | WIN Majority decision |
| 1994-06-28 | Freddy Curiel | L | Meadowlands Convention Centre, Secaucus | LOST Split-decision |
| 1994-03-04 | Jamar Carter | debut | Hotel Pennsylvania, New York | LOST Unanimous decision |
| 1994-01-21 | Pedro Cotto | LLLW | Hotel Pennsylvania, New York | WIN Points |
