Bayern Munich team manager Uli Hoeness admitted on Friday that his side should be prepared for a 'brutal' fight to keep hold of star winger Franck Ribery. Ribery has been linked with a host of high-profile clubs over the past few months but Bayern insisted they wouldn't let him depart. And the Bavarians intend to step up their efforts to ward off reported interest from the likes of Real Madrid, Barcelona and Juventus. "Our aim is to do everything to keep him," Hoeness told Bild. "But it will be a brutal fight. For sure there will be questions coming in for him and so it is important that we do not budge and express ourselves very clearly so as to keep him." Ribery, 25, joined Bayern from Marseille in the summer of 2007 and led them to the domestic double in his first season at the Allianz Arena.