On 2 January 2013, Cardozo took his season tally to 21 goals in 19 official games after netting three in a 6–0 home routing of Desportivo das Aves for the campaign's Taça de Portugal. On 2 May, he scored his fifth and sixth in eight contests in the season's Europa League, being crucial to a 3–1 home win against Fenerbahçe in the semi-finals second leg with the subsequent 3–2 aggregate qualification to the final in Amsterdam. In the decisive match, he netted from the penalty spot in the 68th minute for the 1–1 equalizer against Chelsea, who won it 2–1.