Joop van Daele) to win the world club crown, the first Dutch team to do so. Estudiantes player Oscar Malbernat got frustrated and grabbed Van Daele's glasses and trampled on them. "You are not allowed to play with glasses... at least not in South America" was his excuse. As the cup holders, Feijenoord participated in the 1970–71 European Cup despite relinquishing the Dutch title, which was won by Ajax. Feijenoord were eliminated in the first round, following a surprise defeat by the Romanian team UTA Arad. In 1971, Feijenoord won their 10th Dutch Championship. In 1974, the club changed their name from Feijenoord to Feyenoord, as people from outside the Netherlands did not know how to pronounce Dutch ij. Under their new name, they played in the 1973–74 UEFA Cup, reaching the final, following a 4–3 aggregate win over VfB Stuttgart in the semi finals. The opponent in the final was Tottenham Hotspur. Spurs took a 2–1 lead in the first leg at White Hart Lane, but Theo de Jong equalised after 85 minutes and the match ended in a 2–2 draw. Feyenoord then won their match in Rotterdam 2–0, thanks to goals by Wim Rijsbergen and Peter Ressel, and also became the first Dutch team to win the UEFA Cup. As a result, Spurs fans started to riot, introducing Dutch football to the spectre of hooliganism in the process. The remainder of the decade saw Feyenoord win only one more honour: the Dutch Championship in 1974. In 1978, the club divided their professional and amateur sides to form two separate teams, Feyenoord Rotterdam for professionals and SC Feyenoord for amateurs. Feyenoord won their fifth Dutch Cup in 1980 by beating Ajax 3–1 in the final. In 1984, Feyenoord had another bright season, winning the double for the third time in their history. Key players in the squad from this period included Johan Cruyff, Ruud Gullit and Peter Houtman (who later became the Feyenoord stadium announcer). Cruyff reacted to Ajax's decision not to offer him a new contract at the start of the season and signed for archrivals Feyenoord instead. Cruyff's move to Rotterdam was criticised and increased Ajax's motivation to beat Feyenoord. In the Olympic Stadium of Amsterdam Feyenoord suffered one of their most heavy defeats ever: 8–2. However, Feyenoord later defeated Ajax in Rotterdam 4–1 and Ajax were subsequently beaten a second time in the Dutch Cup. Feyenoord