he Black Cats reached the League One play-off final after getting past Sheffield Wednesday on Monday night after Patrick Roberts scored a dramatic stoppage-time equaliser to put the Black Cats 2-1 ahead on aggregate.
It came after Wednesday striker Lee Gregory levelled the score, and the match looked set to go to extra-time before Roberts’ late finish.
But how does this tie compare to previous matches and is this the biggest League One play-off semi-final over two legs in terms of attendance in the history of the third tier?
Here, the Sunderland Echo crunch the numbers:
1. Oldham vs QPR (2003)
League One play-off semi-final attendance over two legs: 29353 Photo: Ian Walton
2. Swansea-Brentford (2006)
League One play-off semi-final attendance over two legs: 29712 Photo: Pete Norton
3. Huddersfield Town-Millwall (2010)
League One play-off semi-final attendance over two legs: 30117 Photo: Jan Kruger
4. Bolton-Notts County (1990)
League One play-off semi-final attendance over two legs: 30308 Photo: Dan Smith