Adelaide United manager Aurelio Vidmar sounded a warning to Gamba Osaka after his side edged past Waitakere United 2-1 in the opening game of the Club World Cup on Thursday.
Gamba beat Adelaide 5-0 on aggregate in the final of last month's Asian Champions League, but the Australians set up a revenge clash after goals from Daniel Mullen and Travis Dodd canceled out Paul Seaman's first-half opener for the New Zealand part-timers at National Stadium.
With a Club World Cup semifinal date with Manchester United the prize for the winner of Sunday's game at Toyota Stadium, Vidmar needs no extra motivation.