Transfer market foes Real Madrid and Manchester United are ready to do battle again over the signature of Karim Benzema.

Both clubs have expressed interest in signing the highly rated Frenchman, who currently plies his trade for Lyon.

Zinedine Zidane is one of the main proponents of Madrid's advances, but with the club having already spent huge sums of money on the transfers of Kaka and Ronaldo, and potentially also for Franck Ribery, they will not be willing to pay over the odds.

Sir Alex Ferguson has already been in contact with representatives of Lyon and asked the club to set a realistic price for the striker.

Accoring to reports the club has slapped a £25.5million (€30million) price tag on the 21-year-old.

Lyon president Jean Michel Aulas is apparently keen to accept an offer in this region, with Lyon already preparing a move for Porto's Lisandro Lopez.