The Australian international seemed destined to move abroad after Liverpool opted not to renew his contract, which expires this summer.
The 29-year-old spent five years on Merseyside following his high-profile switch from Leeds United but continual injury problems meant he failed reach the heights expected of him.
Roma are reported to be interested in the Sydneysider as they seek to refresh their wide options, having already signed Norwegian defender John Arne Riise from the Reds.
But reports from England claim Blackburn will approach Kewell with an offer this week, as new boss Paul Ince seeks to make his mark on the squad immediately.