Victory at Morecambe on the final day of the regular season means Alex Neil’s side will face Sheffield Wednesday over two legs – raising the possibility of a return visit to Wembley for the final at the end of May.
Nathan Broadhead scored the game’s only goal at the Mazuma Stadium, securing a fifth-place finish for the Black Cats.
Sheffield Wednesday finished fourth in the table after coming from behind to beat Portsmouth 4-1 at Hillsborough.
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Here’s everything you need to know ahead of the play-offs:
WHEN ARE THE LEAGUE ONE PLAY-OFF SEMI-FINALS?
The League One play-off semi-finals will be played across May.
Sheffield Wednesday then face-off against Sunderlandon Friday May 6 (7.45pm) and Monday May 9, (7.45pm)
MK Dons and Sheffield Wednesday will play at home in the second legs, meaning Sunderland will take on the Owls at the Stadium of Light on Friday.
The Black Cats will then travel to Hillsborough three days later.
WHEN IS THE LEAGUE ONE PLAY-OFF FINAL?
The League One play-off final will once again be taking place at Wembley Stadium this year – and will take place on Saturday, May 21.
Kick-off is scheduled for 3pm.
ARE THE LEAGUE ONE PLAY-OFFS ON TV? WHERE CAN I WATCH?
Yes, the League One play-offs will be broadcast on TV.
Sky Sports will be showing all the action from the semi-finals and the final on their channels.
ARE TICKETS AVAILABLE FOR THE LEAGUE ONE PLAY-OFFS?
Ticket details for the semi-final fixtures will be confirmed by each club in due course.
Sunderland have announced ticket details for the home leg against Sheffield Wednesday, which can now be purchased by visiting the club’s website.
Season card holders will be able to secure their designated seat until 5pm on Tuesday May 3 and can do so by visiting www.eticketing.co.uk/safc and signing into their e-ticketing account.
Tickets will go on general sale after the aforementioned date.
Details for the trip to Sheffield Wednesday will be confirmed in due course.