Current EFL Championship table. How did this happen to Sunderland?

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EFL Championship - Wikipedia

English Championship table predictions: Who will be promoted?

Sunderland A.F.C. - Wikipedia

Supercomputer predicts whether Burnley will join Reading, Sunderland, Newcastle United, Leicester City and Fulham in Championship's 100-club

Sunderland AFC 2021/22 Financial Results - An Analysis

Data experts predict how Championship title race will unfold for Middlesbrough, Leeds United, Southampton, Leicester City and Sunderland after summer deals

Sunderland's latest predicted 2023/24 EFL Championship finish

Sunderland 1-0 Leeds United: Jobe Bellingham steers Black Cats to victory, Football News

Sunderland AFC Finances - What would promotion to the Championship mean?