 In March 2012, he signed with the Romanian club Petrolul Ploieşti, scoring 2 goals in 12 matches.Zerka joined Singapore League (S.League) club Tanjong Pagar United in January 2013.He made his league debut on 22 February 2013 against Balestier Khalsa, scoring a goal in the match that ended 3–1 to Tanjong Pagar United.