On 27 October 2004, São Caetano defender Serginho suffered a cardiac arrest during a match against São Paulo and died later that day. He was 30 years old.
The center back, whose real name was Paulo Sérgio Oliveira da Silva, had joined São Caetano in 1999 after spending the previous four years at six different clubs. While there, according to goalkeeper Silvio Luiz, team doctors discovered that Serginho had an enlarged heart which put him at risk for potential cardiac problems. But, again according to Luiz, they thought the risks of an incident were "less than one percent."
In the 38th week of the season, São Caetano was away at São Paulo when Serginho suffered a seizure and collapsed in the 60th minute. Physicians from both teams attempted to revive him, but with no success. He was rushed to the hospital, where he was later pronounced dead.
The match was abandoned with a score of 0-0, but the remaining 30 minutes were played on 3 November, with São Caetano winning 4-2. They were later docked 24 points for allowing Serginho to play with a known heart condition, dropping them from fifth to eighteenth in the final table.