Gregorio Sierra Perez (Grego Sierra) is a defender ( centre back ) player born 05-Mar-93 in Spain. In the last 30 days Grego Sierra played 174 minutes in 3 games of 4 in this period, 1 from the bench. Received 1 yellow cards and did not score goals. Grego Sierra received an average punctuation of 3.2 stars during this period, having successfully completed 72 out of 82 (88%) passes.