 Moving on to defending Eredivisie champions PSV Eindhoven, Nielsen joined up with fellow Danish internationals Frank Arnesen and Jan Heintze.Nielsen helped PSV win three Eredivisie championships in a row from 1987 to 1989, as well as the three Dutch Cups in a row from 1988 to 1990.His most notable result with PSV, was winning the international 1988 European Cup, when S.L.