Watch free-to-view highlights from Saturday's clash at The Hawthorns.
The Baggies were undone by a stoppage-time effort from Jack Rudoni during their final match before the September international break.
Delano Burgzorg had given the visitors the advantage at half-time, but John Swift's effort early into the second period gave Carlos Corberán's men a chance to turn things around. However, the hosts were punished late on as they suffered a rare home defeat.
Catch the WBA TV footage below.
