At Braga, Fehér had his best professional season, netting 14 goals in 26 2000-01 matches. After Porto chairman Jorge Nuno Pinto da Costa quarreled with agent José Veiga (Fehér's agent), Fehér refused to let go off his agent and left. He joined Lisbon side S.L. Benfica, going on to score 7 goals in 28 matches, during two seasons.
Teammates rushed immediately to aid Fehér before medical personnel arrived on the pitch. CPR was performed as players looked on in visible distress. An ambulance arrived on the pitch and Fehér was rushed to the hospital. His condition was covered by the Portuguese media throughout the day, but before midnight Fehér's death was confirmed. The Public Prosecutor (the Portuguese agency responsible for the release of autopsy details) announced that Fehér died of a heart attack. He was only 24 years old.
In memory of him, Benfica retired the number 29 shirt which he wore during his time at the club, as it would never be worn again by any club player. He was remembered by many and his death caused a profound shock in Portuguese sport. Among others, Reinaldo Teles - director of football of FC Porto - and José Mourinho - Porto's manager at the time - paid their respect at the Estádio da Luz where the player's body remained before his burial in native Hungary.
|1||10 October, 1998||Baku||4-0||Win||UEFA Euro 2000 Qual.|
|2||11 October, 2000||Kaunas||6-1||Win||FIFA World Cup 2002 Qual.|
|3||11 October, 2000||Kaunas||6-1||Win||FIFA World Cup 2002 Qual.|
|4||11 October, 2000||Kaunas||6-1||Win||FIFA World Cup 2002 Qual.|
|5||15 November, 2000||Skopje||1-0||Win||FIFA World Cup 2002 Qual.|
|6||17 April, 2002||Debrecen||2-5||Lost||Friendly|
|7||20 August, 2003||Murska Sobota||1-2||Lost||Friendly|