 On 27 February 2013, in only his second league match, Zerka scored his first career hat-trick against Warriors FC, which Tanjong Pagar United won 6–1.On 4 October 2013, Zerka scored a hat-trick 2 goals and 1 own goal to helped Tanjong Pagar United become the first team to qualify for the 2013 Singapore Cup.Zerka has gained 10 full caps for Morocco, scoring 2 goals.