Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Real Betis II | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 At. Malagueño | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 Torreperogil | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Marbella | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 UCAM Murcia | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Almería II | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 San Roque de Lepe | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Sevilla II | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Real Avilés | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Orihuela | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Mancha Real | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Ciudad Real | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Real Jaén | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Peña Deportiva | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Águilas CF | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Union Estepona | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
 Yeclano | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Linense | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
 UD San Pedro | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Antoniano | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
Roberto Sierra plays as a midfielder for Torre del Mar. Roberto Sierra has scored 5 goals in 102 professional appearances across 4 clubs. Among the clubs he has represented — Torre del Mar, El Palo, Gimnástica Torrelavega, Alcúdia — Roberto Sierra was most prolific at El Palo, where he scored 3 goals in 48 appearances.
