Baros joined Villa on a four-year contract in August 2005 after dropping to fourth choice behind strikers Djibril Cisse, Fernando Morientes and PeterCrouch at Liverpool.
Liverpool, who have already sold PeterCrouch to Portsmouth this summer, are keen to free up transfer funds as they look to finalise a deal for Villa captain Gareth Barry and continue to chase Spurs striker Robbie Keane.
After returning to White Hart Lane from Liverpool in February 2009, Keane found himself behind PeterCrouch, Roman Pavlyuchenko and Jermain Defoe in the attacking pecking order.
Defoe should have scored his first international hat-trick only to miscue wide but then combined brilliantly with his second-half strike partner PeterCrouch for one of the best passing moves of the game, but the Liverpool striker was denied by a sprawling Ince.
Prospective new owner Sulaiman Al Fahim's takeover of the club has still not been completed and two of last season's stand-out players - top scorer PeterCrouch and defender Glen Johnson - have both been sold - to Tottenham and Liverpool respectively.