In 1993, Popov moved to Spain alongside teammate Dmitri Radchenko, and would spend there the following six-and-a-half years, with Racing de Santander (in the 1995–96 season, he teamed up there with compatriot Ilshat Faizulin), SD Compostela and CD Toledo.
In 1993, Popov moved to Spain along with teammate Dmitri Radchenko. He spent six-and-a-half years in Spain, including time at Racing de Santander (in the 1995–96 season, he worked alongside Ilshat Faizulin) and SD Compostela and CD Toledo.