West Brom defender Kyle Bartley was shown a straight red card after tempers flared following his side's dramatic 2-1 victory against Sheffield Wednesday.
Jayson Molumby scored a last-gasp winner in the 97th minute to boost the Baggies' Championship play-off bid at The Hawthorns on Saturday afternoon.
But ugly scenes broke out after the final whistle and Bartley, the hosts' captain, was dismissed for his part in a brawl which broke out in the centre circle.
Players from both teams began to push and shove each other and Bartley was caught planting an elbow into the face of Wednesday midfielder Svante Ingelsson.