The former Strasbourg, Crystal Palace, Lens and Bayern Munich defender takes over from interim coach Roger Prinzen, who stepped in after Dutchman Gertjan Verbeek was sacked in April.

Ismael, 38, started his playing career in his native Strasbourg in 1992, before joining Crystal Palace in January 1998 for �2.7 million ($4.5m), becoming the most expensive player in the English club's history.

He only played 13 games before returning to France to play for Lens.

Ismael headed for the Bundesliga in 2003 winning the league and Cup double with Werder Bremen before joining Bayern two years later where he also won the double in 2006.

He finished his playing career in Hanover in 2009, before coaching the team's reserve side between 2011 and 2013, before joining Wolfsburg last summer on a three-year deal to coach the Under-23 side.

Nuremberg were relegated after finishing second from bottom of the Bundesliga in the season that just concluded.