Sunderland dropped two points in the play-off race as they were held to goalless draw by Lincoln City at Sincil Bank. The Black Cats created a series of chances against a poor Imps side, but were unable to convert.
Corry Evans came closest when he hit the post just before the hour, while Jack Clarke and Ross Stewart also chances to score. But Lincoln held on for the draw, with goalkeeper Jordan Wright making a brilliant save to deny Stewart in injury-time.
Earlier, Lincoln had almost won it and it needed a fine stop from Anthony Patterson to prevent substitute Liam Cullen finding the net. Sunderland kept their fourth clean sheet in five games and stay sixth in the table, but this was a missed opportunity against a Lincoln side that had lost five of its last seven games going into this match.