In March/April 2008 Casto, who eventually overtook Ricardo as starter after the latter's recovery, featured in Betis' first three back-to-back victories in over two years, with wins over CA Osasuna, FC Barcelona and Real Zaragoza.
In March/April 2008, Casto, who eventually replaced Ricardo as the starting player after the latter's recovery, was instrumental in Betis achieving their first three consecutive victories in over two years, with wins against CA Osasuna, FC Barcelona, and Real Zaragoza.