In the 2009–10 season, De Leeuw would only score three goals in thirty-two appearances in all competitions. During the 2010–11 season, his form improved, scoring ten goals in thirty-two appearances in all competitions, including a brace and providing an assist, in a 3–2 win over Dordrecht in the last game of the season. Shortly after the match, the club suffered a huge setback by declaring themselves bankrupt meaning they would not play in the Eerste Divisie.
