Argentina defender Ezequiel Garay has singled out Edin Dzeko as Bosnia-Herzegovina's most dangerous player ahead of the two teams' encounter at the World Cup.

The sides square off in the opening match of Group F on Sunday when they meet in Rio de Janeiro.

While claiming that the Bosnians have a number of talented players in their ranks, Garay believes that Dzeko is their biggest threat.

"We know they've got some fine players, not least the centre-forward Dzeko, but the main thing for us is to avoid being complacent and not make the mistake of thinking it's going to be easy," he told FIFA.com.

"With the history and the players we've got, some of whom are among the best in the world, we're seen as one of the contenders for the title, though all our thoughts right now should be on beating Bosnia."

Garay has won 18 caps for Argentina since he made his debut back in 2007.