 He debuted in a 4–0 home win against Caen, coming in as a late substitute in the 83rd minute.Before finally signing professional forms (initially a three-year contract) with Nancy in August 2002, Zerka had made his debut for the Morocco national team.After playing in various positions over the years, Zerka proved effective in a forward role in Nancy's first season back in the top flight, scoring 6 goals in 24 appearances and continued in this position in 2006–07.