Osijek finished third in the 1997–98 Croatian First League, qualifying for the 1998–99 UEFA Cup. Osijek came up against Anderlecht. After a famous 3–1 victory at home in front of 15,000 supporters, Osijek lost 2–0 in Belgium and were knocked-out on away goals. In 1998–99, Osijek attained its first trophy, the Croatian Cup, following a victory over Cibalia 2–0. A year later, West Ham United was playing away in Gradski vrt, headed by Frank Lampard, Rio Ferdinand, Trevor Sinclair, Paolo Di Canio, Paulo Wanchope and Igor Štimac.