Page last updated at 18:34 GMT, Sunday, 28 September 2008 19:34 UK
Scolari forewarned
But Scolari is not immune to surprise defeats - the Brazilian was in charge of Portugal when the country were beaten 1-0 in the final of Euro 2004 by Greece.
However, Scolari believes he has sufficient information from his sources, courtesy of Cluj's strong Portugal links.
"I have told my players what to expect," he said.
"It's important to try to win this match away from home. If they beat us then they will have two more home games to come and it could be a difficult situation for us."
Opposite number, Maurizio Trombetta, only took charge of the club on 1 September, succeeding Ioan Andone.
The Italian has Serie A experience having previously worked as an assistant coach with Udinese, Napoli, Perugia, Bologna and Ancona.
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