The Cherries are now seven games without a win in the Premier League and looking nervously over their shoulders at the relegation zone
A Gareth McAuley strike after some unconvincing goalkeeping from Artur Boruc saw West Brom beat Bournemouth 2-1 at the Hawthorns to further pile the pressure on Eddie Howe.
The former Celtic shot-stopper flapped at a corner midway through the first half and McAuley was on hand to take advantage, with Craig Dawson earlier cancelling out Joshua King's opener.
Saturday's defeat means Bournemouth have now gone seven Premier League games without a win, with Howe's men losing their last four to slip into the battle to avoid relegation.