Swansea City and Leeds United suffered defeats that meant West Brom and Nottingham Forest became the Championship's new top two.
Leeds United beat previous Championship pacesetters West Brom 1-0 at Elland Road to move top of the table.
Derby County beat Birmingham City 3-2 in the Championship - days after a team night out ended with police charges and an injured captain.
Matt Phillips scored twice as West Brom eventually overcame Huddersfield Town at the Hawthorns.
Nottingham Forest and Birmingham City halted the progress of the Championship's top two sides with impressive away victories.
Ahead of the international break, the Championship's top two are Swansea City and Charlton Athletic.
Marcelo Bielsa's Leeds United continued a fine start to the season while promotion rivals Fulham lost to Nottingham Forest.
Leeds United and Swansea City moved onto 10 points from four Championship games as Fulham saw off Millwall in style.
Sheffield Wednesday's loss to a 10-man Millwall and Charlton Athletic's draw at Oakwell opened the door for Leeds United to go top.
The 2019-20 Championship season is almost here and the likes of Leeds United, Cardiff City and Fulham are among the title contenders.