SAINT PETERSBURG - Iran coach Carlos Queiroz believes his players have been brought closer together by Nike's decision to cut their supply of World Cup kit to the team but the acid test will come against Morocco on Friday.

Nike announced they have been forbidden from providing football boots to Iran's squad during the tournament, on account of sanctions imposed against the country by the United States. The late decision has disrupted Iran's preparations, with some players reportedly having to buy their own footwear from Russian shops or even ask club team-mates for help.  "It has been a source of inspiration for us," Queiroz said.  "This last comment of Nike was, in my personal view, an unnecessary statement. Everybody is aware about the sanctions.

"They should come out and apologise because this arrogant conduct against 23 boys is absolutely ridiculous and unnecessary."

Iran head into the match against Morocco in Group B on the back of a difficult build-up to the tournament overall, after friendly matches against Greece and Kosovo were also cancelled.

It remains to be seen whether Queiroz's defiant verdict bears fruit, given any loser of Friday's crunch fixture in Saint Petersburg would be left needing to beat either Spain or Portugal to reach the last 16.

"We have the potential to surprise Morocco in our first match," Queiroz said. "We know their team very well but I suspect they know very little about us."

Queiroz's mood may seem bullish but, despite upheaval off the pitch, his team have been in excellent form on it.

In Brazil four years ago, they were sunk by a late Lionel Messi strike in the group stage against Argentina but there was enough in Iran's performances to persuade Queiroz to stay on.

The former Real Madrid coach and Manchester United assistant had already overseen them climbing from seventh to top of the Asian rankings and since the last World Cup, they have not lost a competitive game. That run includes 22 matches and even saw Iran as the first team to qualify for Russia.

But, if they are to upset the expected duopoly of Portugal and Spain, Iran will surely need to beat Morocco, who managed not to concede a single goal during their own stellar qualifying campaign.

French coach Herve Renard has instilled a relentless work ethic and defensive discipline in his team but this will be the country's first outing at a World Cup since 1998 and organisation will take the Atlas Lions only so far. After Spain sacked their coach Julen Lopetegui on Wednesday, two days before their opening match, both Morocco and Iran will hope the likelihood of a surprise run has been boosted. "We have a tough draw," Renard said. "It will be a matter of making the most of any chances we get."

Morocco vs iran Iran striker Alireza Jahanbakhsh finished as last season's Eredivisie top scorer with 21 goals for AZ Alkmaar. Morocco playmaker Hakim Ziyech - who plays his club football for Ajax - contributed the most assists in the Dutch league with 21.

Morocco will play Iran for the first time in a World Cup as they start their Group B campaigns on Friday afternoon (4pm BST). Morocco and Iran boast strong defensive records heading into their opening game at the Krestovsky Stadium in Saint Petersburg.

Morocco were the only team not to concede a single goal in the third round of African qualifying, while Iran kept nine straight clean sheets in AFC qualification, letting in just two during their final game against Syria.

Iran will be without the suspended Saeid Ezatolahi, while there are fitness doubts surrounding Mehdi Taremi and Askhan Dejagah.

Morocco will be hoping Nabil Dirar is passed fit. Dirar missed Morocco's last two friendlies against Slovakia and Estonia due to a calf injury.