Velazquez comes on loan from Chivas Guadalajara. The 37-year-old center back previously played under Chivas USA coach José Luis Sánchez Solá with Puebla. He also had loan stints with Santos Laguna, Lobos BUAP and Veracruz.
He has not played professionally since 2010.
Vilchez has 64 caps for Peru and has won Peru's First Division five times, twice with his most recent club, Sporting Cristal. The left back also has experience with Sanchez Sola at Puebla, and has played for Cruz Azul.