CSKA Moscow's Brazilian striker Vagner Love admits there have been no "concrete" bids for him, despite increased Premier League interest.Manchester United are the latest English side to be linked with a move for the 24-year-old forward.The likes of Everton, Chelsea and Tottenham are all said to be keen on the Brazilian, but he insists he has not heard anything direct from anyone."Until now, I haven't received anything concrete," he said."I know about the interest from Everton, Tottenham and Chelsea but this Manchester [United interest] is new."I can guarantee that I don't know anything. I just saw the information on Russian TV."