At club level, Ziege played for Bayern Munich, Milan and Middlesbrough. In the summer of 2000, Liverpool F.C. made a £5.5m bid which exactly matched a get-out clause in Ziege's contract. Middlesbrough insisted they had received offers in excess of £8m for Ziege, but were forced contractually to allow Ziege to talk to Liverpool, who then signed him. He made his debut for Liverpool in a 3–2 home win over Manchester City on 9 September 2000, replacing Steven Gerrard in the second half. A combination of knee injuries and the improving form of Jamie Carragher, meant he was transferred to Tottenham Hotspur at the end of that season. He scored two goals during his spell at Liverpool; against Leeds in the league and Stoke in the League Cup. Ziege also contributed to their treble in the 2000–01 season. He came on as an extra time substitute in the 2001 Football League Cup Final and scored a penalty in the shootout as Liverpool defeated Birmingham City, but he was not part of the match days squads for either the 2001 FA Cup Final or 2001 UEFA Cup Final. On 14 March 2002, Liverpool were fined £20,000 by The Football Association for having made an illegal approach for Ziege when he had been at Middlesbrough. The player himself was fined £10,000. Whilst at Spurs he scored in the 2002 Football League Cup Final but he ended up on the losing side. However, by this time Ziege's injury problems were escalating, and by 2004 his contract was terminated by mutual consent so he could return to Germany. Ziege returned to Germany with Borussia Mönchengladbach in June 2004, but announced his retirement in October 2005, having not played since the previous December due to a persistent ankle injury.
International career
Ziege was capped 72 times for Germany, scoring nine goals. Other than the Euro 96 win, he also played for his country at the 1998 and 2002 World Cups, as well as Euro 2000. Ziege was not initially named in Rudi Völler's UEFA Euro 2004 squad, but was then called up after an injury to Christian Rahn.
Managerial career
Borussia Mönchengladbach
Following retirement as a player, Ziege picked up his UEFA diploma for coaching. In 2006, he moved into coaching with his last professional club, Borussia Mönchengladbach, where he was named manager of the club's Under-17 team, succeeding Thomas Schumacher. In 2006–07 the club's U17 team had won ten out of seventeen matches with Ziege in charge when, in March 2007, he was handed the role of Director of Footballat the club, as the replacement for the outgoing Peter Pander. At the time of his appointment, with ten matches to go until the end of the season, Borussia Mönchengladbach were at the bottom of the Bundesliga, with five points between them and safety. On 5 October 2008, Ziege dismissed Jos Luhukay and became interim manager. The interim job lasted until 18 October 2008 when Hans Meyer became the new permanent manager. On 15 December 2008 Ziege left Borussia Mönchengladbach.
On 26 May 2010, Ziege signed a contract as manager of Arminia Bielefeld. However, his managerial career got off to a poor start with Arminia Bielefeld only picking up three points from a single win from eight games, the worst start to an Arminia Bielefeld season in twenty-three years. Ziege was released from his post as manager of Arminia Bielefeld on 6 November 2010 after a 2–0 defeat against FC Augsburg. From April 2011, Ziege worked for the DFB. He first coached the German U-19, before taking over the U-18 side in August of the same year. Ziege's contract was not renewed. His contract expires in the summer of 2014.
On 27 December 2017, Ratchaburi Mitr Phol F.C. of Thai League 1 officially announced the appointment of Ziege as their new head coach. However, he left them after 2 games of the new season, in the week commencing February 19 'by mutual consent'.
