Valencia CF Mestalla
Upon returning to the "Blanquiverdes", Petcoff was assigned to the reserves in division three, and terminated his contract on 10 August 2015. He continued to appear in the category in the following years, representing CD Eldense, Marbella FC, Valencia CF Mestalla, CD Badajoz, Gimnàstic de Tarragona and UD Logroñés.