There's quite a good series on Netflix about the club called "Sunderland 'til I die". The timing was sort of perfect, when it started Sunderland had just been relegated from the Premiership (England's top tier) and I think it was intended to be a series documenting them rebuilding the team and immediately getting promoted back. In reality thought it didn't go like that at all. The team collapsed, their wealthy owner lost interest and stopped supporting them financially, they made a few management blunders and suffered more tragedy that I will not spoil.

I don't support the team, but I still found the series quite fascinating and found myself rooting for them to succeed. I was surprised to see two of my university friends in the show - Sophie (one of the backroom staff who clashed with the management) and another friend who happened to be in the crowd and got an extreme-closeup before/after a goal in one of the match sequences.