Manchester United chief executive David Gill has reiterated that Cristiano Ronaldo will remain at Old Trafford.
The Portugal winger is currently preparing for Euro 2008 after scoring 42 goals last season.
But there is continued speculation about the 23-year-old's future plans ahead of the tournament in Austria and Switzerland.
United remain bullish about the situation and insist he will stay their player.
"Our position is clear. Sir Alex (Ferguson) and I stated it in the last week," said Gill as he announced they are to play Portsmouth in a dress rehearsal for the Community Shield in Nigeria in July.
"That's it. That's all we are going to say on the matter, full stop."
The exhibition match will be the finale to the Tinapa Business Resorts soccer tournament.
The date and venue have still to be arranged with United travelling to Nigeria from South Africa, where they are involved in the Vodacom Challenge tournament from July 19-26.
Gill said: "It is not the 39th game by stealth, don't worry about that. It is just a coincidence we are playing Portsmouth.
"Exhibition games overseas can help Manchester United but also the Premier League in terms of making sure it is at the forefront of those fans' minds when it comes to selling it.
"Nigeria is home to our fourth largest fan base with some 13.6 million followers and we will be taking a strong squad.
"Sir Alex and the team are always keen to visit new places.
"This match will give an opportunity for our many fans in Nigeria to see the team in the flesh and provide a climax to our summer tour."
Gill confirmed that Ronaldo will not be travelling to South Africa or Nigeria but only because he will be on holiday after Euro 2008.
United are already looking to the future after winning the Champions League and retaining their Barclays Premier League title.
A fee has been agreed with Cardiff for midfielder Aaron Ramsey, who played in the FA Cup final.
At least two other Premier League clubs are chasing the 17-year-old but Gill said: "I am confident."
Should everything go to plan, Ramsey will be loaned back to the Coca-Cola Championship side next season.
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Real Madrid president Ramon Calderon has said the club will not approach Ronaldo while he is under contract at United.
On a day when Barcelona were heavily linked with a move for the Portugal winger in the Spanish press, Calderon appeared to concede defeat in his attempts to sign the player.
He told Marca: "(Ronaldo) is an impossible signing because his club don't want to sell him. We can't do anything if the club that owns him don't want to sell."
Both Marca and El Mundo Deportivo state potential Barcelona presidential candidate Sandro Rosell will vow to sign Ronaldo if he is voted into power at the Catalan club.
But Calderon insisted Madrid would not risk their good relationship with United over the winger, adding: "We would never (approach a player under contract) as this is not the policy of Real Madrid, and especially not with a club who we are such good friends with."
But there is continued speculation about the 23-year-old's future plans ahead of the tournament in Austria and Switzerland.
United remain bullish about the situation and insist he will stay their player.
"Our position is clear. Sir Alex (Ferguson) and I stated it in the last week," said Gill as he announced they are to play Portsmouth in a dress rehearsal for the Community Shield in Nigeria in July.
"That's it. That's all we are going to say on the matter, full stop."
The exhibition match will be the finale to the Tinapa Business Resorts soccer tournament.
The date and venue have still to be arranged with United travelling to Nigeria from South Africa, where they are involved in the Vodacom Challenge tournament from July 19-26.
Gill said: "It is not the 39th game by stealth, don't worry about that. It is just a coincidence we are playing Portsmouth.
"Exhibition games overseas can help Manchester United but also the Premier League in terms of making sure it is at the forefront of those fans' minds when it comes to selling it.
"Nigeria is home to our fourth largest fan base with some 13.6 million followers and we will be taking a strong squad.
"Sir Alex and the team are always keen to visit new places.
"This match will give an opportunity for our many fans in Nigeria to see the team in the flesh and provide a climax to our summer tour."
Gill confirmed that Ronaldo will not be travelling to South Africa or Nigeria but only because he will be on holiday after Euro 2008.
United are already looking to the future after winning the Champions League and retaining their Barclays Premier League title.
A fee has been agreed with Cardiff for midfielder Aaron Ramsey, who played in the FA Cup final.
At least two other Premier League clubs are chasing the 17-year-old but Gill said: "I am confident."
Should everything go to plan, Ramsey will be loaned back to the Coca-Cola Championship side next season.
ends
(reopens)
Real Madrid president Ramon Calderon has said the club will not approach Ronaldo while he is under contract at United.
On a day when Barcelona were heavily linked with a move for the Portugal winger in the Spanish press, Calderon appeared to concede defeat in his attempts to sign the player.
He told Marca: "(Ronaldo) is an impossible signing because his club don't want to sell him. We can't do anything if the club that owns him don't want to sell."
Both Marca and El Mundo Deportivo state potential Barcelona presidential candidate Sandro Rosell will vow to sign Ronaldo if he is voted into power at the Catalan club.
But Calderon insisted Madrid would not risk their good relationship with United over the winger, adding: "We would never (approach a player under contract) as this is not the policy of Real Madrid, and especially not with a club who we are such good friends with."
Copyright (c) Press Association
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