Rovers are looking to bolster their forward line following the departure of Benni McCarthy to West Ham in last season's winter transfer window and the return of loanee Franco Di Santo to Chelsea at the end of the campaign.
So far neither forward has been replaced but that could be about to change, with Williams telling the Lancashire Telegraph: "We have made an improved offer for a player and are waiting to hear the outcome of it. Negotiations will be ongoing this week."
Meanwhile, Blackburn boss Sam Allardyce has dismissed speculation linking midfielder Vince Grella with a move to Turkish side Galatasaray. Allardyce gave Grella a run-out in Rovers' 2-1 victory over Sydney FC at the weekend and said afterwards that he had received no approach for the player.
"We have had no contact whatsoever from Galatasaray, I am led to believe, and so Vince is still our player and I am glad to see him get another 60 minutes in," Allardyce said.
Source: PA
Source: PA