 Complete the following phrase:  Ajax participated in 1972 against Independiente. The teams arrival at Buenos Aires was extremely hostile: Johan Cruyff received several death threats from Independientes local fan firms. Due to the indifference from the Argentine police, Ajax manager Ştefan Kovács appointed an organised emergency security detail for the Nederlandse meester, headed by himself and team member Barry Hulshoff, described as a big and burly man. In the first leg, Cruyff opened the scoring in Avellaneda at the 5th minute. As a result, Dante Mircoli retaliated with a vicious tackle a couple of minutes later; Cruyff was too injured to continue and the Dutch team found themselves being assaulted with tackles and punches. Kovács had to convince his team to play on during half-time as his players wanted to withdraw. Ajax squeezed a 11 tie and followed up with a 30 trounce in Amsterdam to win the Cup. Although Ajax were the defending champions, they again declined to participate 