A late own goal from Wes Harding sent Leeds United above West Brom in the Championship table, while Fulham have moved up to third.
Championship leaders West Brom let in a late equaliser at Barnsley on Boxing Day but Leeds were unable to capitalise.
Sheffield Wednesday moved up to third in the Championship thanks to a 1-0 win over Bristol City, secured by a late penalty.
Leeds United's failure to hold onto a 3-0 lead against Cardiff City means West Brom end Saturday at the Championship summit.
A 1-1 draw with lowly Wigan Athletic denied West Brom the chance to climb back above Leeds United at the top of the Championship.
Bristol City's 2-0 win at Fulham put the Robins right in the promotion picture, while leaders Leeds United beat Huddersfield Town.
Manchester City have a favourable draw in the FA Cup third round, but there are difficult trips for Everton and Manchester United.
A comfortable home win over Bristol City moved West Brom back into top spot, while Garry Monk avoided defeat against his former side.
Garry Monk had some choice words about his former Birmingham City assistant Pep Clotet, leading to a retort from the Blues.
Preston's loss to Derby gave West Brom and Leeds the opportunity to boost their positions in the race for promotion from the Championship.