Charlie Austin's late penalty kept Albion top of the league following a 2-1 win over a spirited Sheffield Wednesday side.
Hal Robson-Kanu opened the scoring after a wondeful assist from Matheus Pereira.
But the Owls hit back after the break when Steven Fletcher scored from the spot kick after Filipe Krovinovic's error.
But Austin kept his nerve in the 88th minute to fire home his second of the season.
Watch extended highlights of Albion's win here.