José Manuel "Sema" Velázquez Rodríguez, (born 8 September 1990) is a Venezuelan professional footballer who plays as a centre-back for Liga Portugal 2 club Alverca and the Venezuela national 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.
Velázquez was selected to play for Venezuela in the 2009 South American Youth Championship by César Farías, partnering Carlos Salazar in central defence.
During the Round of 16 of the 2009 FIFA U-20 World Cup held in Egypt, he play the full 90 minutes against UAE but Venezuela was eventually defeated 1–2.
Velázquez is a member of the Venezuela national football team, having debuted on 28 March 2009 against Argentina.