Nigeria coach Stephen Keshi has described the second leg final Brazil 2014 World Cup qualifier against Ethiopia as a tough match.

Keshi told a news conference in southern city of Calabar, saying that the Ethiopian national team was a good side.

"They are a very good side and they have stayed together for more than five years. It is not going to be easy. We have a serious work on Saturday and we have to be very cautious," he told reporters.

The coach added his team was mentally and physically fit to confront the Ethiopians on Saturday, and expressed optimism that they would do the nation proud.

Keshi coach disclosed that discipline was the secret behind the team's successes, pointing out that the interest of the country superseded any individual interest.

"Every human being deserves respect. The line of communication is very open. If you are not ready to abide by the rules of the team, you leave," he said.

"Nigeria is bigger than anybody."

The Nigerian handler told his audience that the relationship between home-based players and the foreign-based was very cordial.

The coach expressed displeasure over the state of the UJ Esuene Stadium pitch, describing it as un-kept.

He said the Nigerian team remained open to every Nigerian footballer doing well anywhere across the globe and urged players to work hard to deserve a call up.

All the 25 invited players are already at their Metropolitan Hotel camp.

The match is scheduled for Saturday at the main-bowl of the UJ Esuene Stadium, Calabar.

The Nigerian team would need to consolidate on their earlier 2-1 victory against the Walya Antelopes, to qualify for the 2014 World Cup.