Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Alvarado | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 0 |
 San Lorenzo | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 San Jorge Tucumán | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 San Lorenzo Alem | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Sportivo Belgrano | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Juventud Antoniana | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Chaco For Ever | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 River Plate | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Temperley | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Deportivo Roca | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Guillermo Brown | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Estudiantes de Río Cuarto | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Racing Olavarría | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 |
 Unión Aconquija | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Estudiantes de San Luis | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Central Norte de Salta | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Union Mar del Plata | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Gimnasia y Esgrima Mendoza | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Unión Villa Krause | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 CAI | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Mario Vallejo is a professional midfielder. Mario Vallejo has scored 6 goals in 39 professional appearances across 2 clubs. Among the clubs he has represented — Deportivo Maipú, Juventud Unida Univ. — Mario Vallejo was most prolific at Juventud Unida Univ., where he scored 3 goals in 25 appearances. Mario Vallejo stands 174 cm tall, weighs 83 kg.
