Karlan Grant scored the only goal of the game as West Bromwich Albion ground out a West Midlands derby win over Birmingham City to move top of the Championship.
Grant's powerful 75th-minute strike was enough for the Baggies to replace Bournemouth on goal difference.
Defeat leaves Lee Bowyer's City with only one point - and no goals - from their past five games.
The first West Midlands derby to be played in front of a crowd since the Covid-19 pandemic generated a tremendous atmosphere inside The Hawthorns - but it quickly evaporated as the hosts struggled against a well-marshalled, rejigged Blues defence.