Scoring five goals in his debut match in the Süper Lig suggested Jardel would adapt well to his new club, but towards the end of the season, injuries and growing personal problems hinted he was soon going to leave Turkey. Regardless, he was part of the Galatasaray squad that won the 2000 UEFA Super Cup, himself scoring twice with a golden goal to beat Real Madrid 2–1 in the Super Cup match, and reached the quarter-finals of the 2000–01 UEFA Champions League, with Jardel scoring six goals in the competition and helped in victories against teams such as Rangers, Deportivo de La Coruña, Monaco, Paris Saint-Germain, Milan and Real Madrid. He ended the season with 34 goals.