Nicky Shorey is expected to become a West Brom player in the next 24 to 48 hours after completing his medical.
Aston Villa boss Martin O'Neill confirmed on Saturday the story that had been previously revealed by skysports.com and he said that a fee had been agreed for the full-back's departure.
Two-time England international Shorey has since undergone physical examinations at Premier League new-boys West Brom and manager Roberto Di Matteo hopes that the transfer will soon be concluded.
"Nicky has completed a medical and we are hopeful he will become one of our players over the next 24-48 hours," Di Matteo told the Baggies' official website.
"We're quite far down the line with Nicky. We hope he will join us.
"Nicky will increase competition for places. He's composed on the ball and a good defender.
"It will also be nice to add some Premier League experience to the squad, because we are a young team.
"Nicky knows what it takes to play at the highest level."
Shorey spent the majority of last season on loan at Nottingham Forest and Fulham after finding first-team opportunities limited at Villa Park, with Stephen Warnock making the left-back position his own.