Azaz (pictured) put West Brom ahead in the 74th minute at their training ground.
But Stoke centre-back Nathan Collins headed in to earn a draw for his side in the 88th minute.
Stoke remain 10th on 17 points, while West Brom are bottom with nine points.
See: West Brom report
West Brom: 30 Mar v Wolves (H) PL2
Stoke: 21 Mar v Newcastle (A) PL2