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Wilfried Bony scored in Ivory Coast's win over Japan

Wilfried Bony's agent says the Ivory Coast striker will only leave Swansea City this summer for a top-six club.

The 25-year-old was the Welsh club's top-scorer last season following his record £12m move from Vitesse Arnhem.

Dalibor Lacina said Bony, who is at the World Cup, is interesting English, Spanish and French clubs but any bid would need to be around £20m.

"He should move only to a top-six club or to a big club because Swansea is a very good club," Lacina said.

"We have received interest from a couple of clubs and I have already informed Mr Jenkins [Swansea chairman Huw Jenkins].

"It's too early to talk about concrete names and, from the business point of view, it wouldn't be correct.

"Let's see what will happen in the future but we have no pressure because Bony is happy in Swansea."

The Ivorian, who scored 25 times for the Swans last season, became the first player at any Welsh club to score at a World Cup finals since Ivor Allchurch in 1958.

Bony scores in Ivory Coast's 2-1 win over Japan

Bony scored Ivory Coast's first goal as they came back to beat Japan 2-1 in their Group C opener in Brazil.

Arsenal, Liverpool, Everton and Borussia Dortmund are among the clubs who have been linked with him but the striker said in May he would be happy to see out the remaining three years of his contract with the Welsh club.

"He appreciates very much the chance which Swansea gave him to play in the Premier League," Lacina added. "Everything depends on the decision of Swansea City.

"On the other hand, every player has his own ambition and, after such a successful season, Bony is ready to take the challenge he can receive. But this challenge must be only from a really top club.

"He has no other reason to leave Swansea - only if some big club with ambitions to play Champions League will come.

"His transfer price is logically really high and only a big club can pay this amount because Bony's ambition is to play at a top club.

"If there will be no offer from a top club there will be no reason to leave Swansea City."