Kempes was playing in the Spanish league for Valencia CF at the time , and had been a key player in the Argentine national team World Cup winning campaign of that year .
Mario Kempes in 1978 was the first Argentine to receive the award while playing abroad .
Mario Kempes was playing in the Spanish league for Valencia CF at the time , and had been a key player in the Argentine national team World Cup winning campaign of that year .
Mario Kempes in 1978 was the first Argentine to receive the award while playing abroad .