Velázquez started his career at just six when he started to play for various youth clubs in town. He made his professional debut with ACD Lara in 2007. Having made himself a regular at the age of 17, Deportivo Anzoátegui secured his services at the beginning of 2008.
He signed for Villarreal in 2009 to play for its reserve team. However, he did not feature in any match since he joined the squad, and was loaned to Venezuelan club Mineros de Guayana for the end of the 2010–11 season and the whole 2011–12 campaign.