West Bromwich Albion's winless run in the English Championship has now gone to six games as they missed the chance to increase a four-point lead after a 1-0 loss to Stoke City on Monday.
Tyrese Campbell scored the only goal in nine minutes of the game which has led Stoke to move four points clear of the relegation zone.
A poor run for both the Baggies and Leeds of late has opened up the race for promotion to the Premier League.
West Brom has pushed third-placed Fulham down to five points while Brentford and Nottingham Forest move a point back.
It is yet to be seen which teams will be eligible for Premier League promotion as the season progresses.