San Fernando, Cádiz
Born in San Fernando, Cádiz, Andalusia, Collantes was a Villarreal CF youth graduate and made his senior debut with farm team CD Onda in the 2001–02 season, in Segunda División B. He competed at that level the following six years, representing Palamós CF, Racing de Santander B and Rayo Vallecano, achieving promotion to Segunda División with the latter in 2008 while scoring a career-best 12 goals.