The England Under-21 forward is the Potters' second signing of this transfer window after the loan deal for Derby keeper Lee Grant was made permanent. Berahino's relationship with the Baggies had broken down after he had scored 20 goals in 45 appearances during the 2014-15 campaign. The striker reacted angrily to a bid from Tottenham being turned down on transfer deadline day in summer 2015 and two months later tweeted that he would never play for the club again under then-chairman Jeremy Peace. And in January 2015, Berahino scored four goals but barely celebrated in what was interpreted as a sign of his growing disillusionment at the Hawthorns.
Speaking after Saturday's 4-0 defeat by Spurs, West Brom boss - and former Stoke manager - Tony Pulis had said Berahino would not be sold "unless it is right for the club". He added: "It has to be a two-way situation. That has always been the situation; we will not sell the lad because it suits him."