Real Madrid's returning president Florentino Perez appears utterly determined to continue making use of his chequebook as he wishes to strengthen his side with just top-notch material.

After splashing out nearly £150 million on Cristiano Ronaldo and Kaka, Real Madrid have spent a reported €15 million to sign Raul Albiol from Valencia and continue being linked to several other players.

Wenger, who was one of the names in the frame to be installed as Real Madrid boss, has now confirmed why he turned down the chance to guide the Spanish capital club.

"Real Madrid lean towards football-spectacle, but there is another dimension: the success of building a team with a style, a know-how, a club's own game culture, of youngsters," he told Dauphine Libere.

"That is what I have chosen. I am in a project of a construction of a young team. I want to stay until the end.

"I enjoy watching my team play the football that I love."

The French tactician has also warned Real that a summer of hefty spending may produce an undesired effect.

"Signing more than three players is to take a technical risk. We enter an area of incertitude.

"But if it works, they will make a lot of damage," he concluded.

Manchester United are facing another obstacle in their bid to sign Douglas Costa, with Arsenal and Bayern Munich now entering the race.

Earlier in the week, United had asked Gremio to allow the 18-year-old Costa to undergo a trial at Old Trafford, but the request was refused. Indeed, the Brazilian club are reportedly unwilling to sell Costa unless a club coughs up his €24 million buy-out clause.

With the Red Devils unlikely to offer such a large amount of money for a teenager, they now face more troubles, as Sport.co.uk claims that both the Gunners and Bayern have now entered the picture.

The German club's interest was confirmed by Costa's agent, Cesar Bottega, who said, "There was an approach from a big German club.

"They saw him at the South American Youth Championship and liked the player. There have been talks and we will see what happens in the next week."

It is unlikely, however, that Arsenal could trump Man United in the financial stakes, perhaps leaving Bayern as the current favourites for Costa's signature.

Arsenal target Serdar Tasci has expressed his happiness at English club's reported interest in him, while stressing that he remains happy at Stuttgart.

Recent reports have identified Tasci, who was also being chased by AC Milan and Juventus, as one of Arsene Wenger's main targets.

Speaking to German website Spox.com, Tasci said, "I have to admit I'm flattered that clubs like Arsenal, AC Milan and Juventus have had their eye on me in the past.

"But I'm not getting carried away with this. I'm focused on Stuttgart and looking to return to action following my knee injury. I have the ambition to move clubs one day, but the time and circumstances have to be right for me."

Tasci then talked about his excitement at playing in the Champions League next season, even contemplating a clash with Arsenal themselves.

"I'd love to play in the Champions League this season," he said.

"We'll have to show up in qualifying of course, but I don't mind who we play. We want to advance to the group stages.

"We might be paired with Arsenal, but we can beat them as well."

Stuttgart are keen to hold on to the player, but they are afraid of losing him for nothing when his contract expires next summer, so they could be tempted by a large bid if Tasci does not sign a contract extension.