Barcelona have been told they'll have to stump up €45m if they are to convince Manchester United and Manchester City to sell Robin van Persie or Sergio Aguero, according to Sport.
Old Trafford star Van Persie emerged as a major target for Barcelona over the weekend, with rumours surfacing that he asked David Moyes for a transfer last week.
It is widely expected that Gerardo Martino will look to bring a striker to the Nou Camp in January as he looks to provide support for Lionel Messi, who has struggled with injury this season.
Van Persie, 30, has been labelled as a potential short-term option, akin to that of Henrik Larsson, who moved to Barcelona in his thirties to finish off a glittering career.
Officials from Catalonia are keeping a close eye on RVP's situation at Old Trafford and will move if reports about his unrest turn out to be true.
But David Moyes denied that the striker requested to leave the club and isn't looking to offload the back-to-back Golden Boot winner unless the figure of €45m is met.
Manchester City are asking for a similar amount for their star striker Aguero, according to the same publication.
The 25-year-old has been in sensational form for the Citizens this season but would be tempted by the chance to hook up with his compatriot and friend, Messi, at the Nou Camp.
There are, however, issues with negotiating with City, who have Txiki Begiristain as their director of football. Begiristain departed the Nou Camp in acrimonious circumstances in 2010.
Both strikers are considered excellent choices by Martino, with Van Persie scoring seven goals in the league already this season despite struggling with injury.
Aguero, who has been one of the best performers in the Premier League this term, has 18 goals for Manchester City in all competitions and sits second to Luis Suarez in the race for the Premier League Golden Boot race.