Portugal will attempt to edge closer to qualifying for a 7th successive major tournament tomorrow, but face an exacting test as they travel to Bosnia and Herzegovina.
Preparations have been far from ideal for Portugal, with Chelsea right-back José Bosingwa responding to being discarded by coach Paulo Bento by launching a scathing attack against the former Sporting manager, accusing him of lacking the emotional stability to be "a leader of men".

The Portuguese delegation is also very unhappy about the state of the playing surface at the Zenica venue, which is heavily covered with mud and sand in several zones. Head of the Portuguese Football Federation, Gilberto Madaíl, has even mooted that the Selecção may play the game under protest.

On the other hand, Portugal could hold a vital psychological advantage over their opponents. Almost exactly two years ago the two sides met in a playoff for the 2010 South Africa World Cup. On that occasion Portugal won both legs 1-0 for a comfortable 2-0 aggregate win.

But Portugal coach Paulo Bento believes Bosnia have improved since those games. "Bosnia are more mature than two years ago and are better players for that. They have players playing in fantastic teams and in the top championships."

Indeed, with the likes of Edin Dzeko and Miralem Pjanic playing for the hosts, and Cristiano Ronaldo and Nani for Portugal, and both teams having defensive issues, we could see more than a few goals fly in tomorrow. Bento claims his charges will certainly not be holding back. The Portugal coach said, "Before games I never accept a draw," while a confident Pjanic said, "we feel we can score against anyone."

One aspect that also has to be factored into the first-leg match is the high number of players at risk of suspension on both teams. Portugal captain Cristiano Ronaldo is one of a slew of players who will miss the return game in Lisbon on Tuesday should he pick up a yellow card tomorrow.

It all adds up to what could be an explosive match in a hostile environment for the visitors. The venue was purposely chosen precisely because of the compact nature of the ground and the fact the fans are in close proximity to the pitch, thus generating a far more intimidating atmosphere than at one of the larger stadiums in the capital, Sarajevo.

Pjanic hopes that is the case saying, "I believe Portugal may be upset by the fervor of our fans in the Bilino Polje."

The game kicks off at 8pm local time and will be refereed by Englishman, Howard Webb.