Berahino, 22, is set to play at White Hart Lane tomorrow night for the first time since Spurs had four bids rejected last summer.
But he could become a familiar face in North London if Mauricio Pochettino gets his way.
The England Under-21 man is out of contract at the end of next season and the Spurs boss is desperate to swoop.
Baggies boss Tony Pulis wants him to stay but Berahino has made no secret of his desire to make the move.
He has endured a difficult season at the Hawthorns, having been marginalised following his reaction to Jeremy Peace’s refusal to sell him.