Former footballer; who played for Sparta Rotterdam (1989-1993), Vitesse Arnhem (1993-1995), Arsenal (1995-1997), Benfica (1996 - Loan), NAC Breda (1997-1998, 1998-1999), Dalian Wanda (1998), MTK Hungária (1999-2000), RBC Roosendaal (2000-2002), and TOP Oss (2002-2003). Helder won 4 caps for the Netherlands national team in 1995.
