Gregorio Sierra Pérez (born 5 March 1993), commonly known as Grego, is a Spanish footballer who plays for Burgos CF as either a central defender or defensive midfielder.
Gregorio Sierra Pérez (born 5 March 1993), commonly known as Grego, is a Spanish footballer who plays for Burgos CF as either a central defender or defensive midfielder. (en)
Gregorio Sierra Pérez (Murcia, 5 de marzo de 1993), más conocido como Grego Sierra, es un futbolista español que juega de defensa en el Burgos Club Futbol de la Segunda División de España. (es)
Gregorio Sierra Pérez (Murcia, 5 marzo 1993) è un calciatore spagnolo, difensore del Burgos. (it)