Jack Ross admitted it was a bitter pill to swallow at the end as Sunderland conceded a stoppage-time leveller.
The Black Cats led through Max Power's 88th minute strike and looked set to secure a crucial three points in the race for promotion.
Instead, Matt Godden had other ideas and levelled in the first minute of stoppage time to keep alive Peterborough's play-off hopes.
Click play in the video panel above to hear from the manager in full.
