Bastl , who only got into the tournament as a lucky loser after failing to qualify , beat the American in five sets . `` Guga '' Rafael Nadal records his fifth loss at the 1982 French Open . Edberg 's win widely reported as one of the biggest upsets in Roland Garros tennis . Debate : Tell us what match is your biggest tennis upset of all time .
`` Guga '' Rafael Nadal records his fifth loss at the 1982 French Open . Edberg 's win widely reported as one of the biggest upsets in Roland Garros tennis . Debate : Tell us what match is your biggest tennis upset of all time .