Italy's football federation (FIGC) is expected to announce this afternoon the names of clubs and individuals that will be charged over allegations of match-fixing in the Italian league.
In brief remarks to reporters in Rome, FIGC president Guido Rossi said the body would make an announcement "tomorrow, after the stock market closes as [bourse watchdog] Consob has requested".
Any clubs charged would face trial at a sports tribunal next week in Rome's Olympic Stadium. Champions Juventus, AC Milan, Lazio and Fiorentina, among the elite clubs of Italian football, have been investigated.
Thirteen of Italy's 23-man World Cup squad play for the four clubs that have come under scrutiny. Italy need at least a draw against the Czechs to guarantee a place in the knockout phase.
Separate criminal prosecutions could follow the FIGC trial, which is expected to deliver its verdicts between July 7th and 9th, the weekend of the World Cup final.
Two of the clubs that have been investigated are traded on the Milan bourse - Juventus and Lazio .
AC Milan is owned by former prime minister Silvio Berlusconi, head of the Fininvest media empire, and Fiorentina by the Tod's footwear tycoon, Diego Della Valle.
No one in the affair has admitted guilt, and the FIGC's prosecutor Stefano Palazzi might decide not to press any charges, though this is considered highly unlikely.
If clubs or individuals are found guilty they could face bans from the sport, fines, relegation from the top flight Serie A and be stripped of trophies won.