 Complete the following phrase:  On 12 April 1986, Bernard Tapie became president, thanks to Marseille mayor Gaston Defferre, and promptly built the greatest team seen in France up to that point. His first signings were Karl-Heinz Forster and Alain Giresse, who were bought after the 1986 FIFA World Cup. Tapie signed a large number of highly regarded players over the next few years in his pursuit of the European Cup, such as Jean-Pierre Papin, Chris Waddle, Klaus Allofs, Enzo Francescoli, Abedi Pele, Didier Deschamps, Basile Boli, Marcel Desailly, Rudi Völler, Tony Cascarino and Eric Cantona as well as appointing high-profile coaches like Franz Beckenbauer, Gérard Gili and Raymond Goethals. Between 1989 and 1992, Olympique de Marseille won four league titles in a row and the French Cup. The team also reached the 