The two sides drew 1-1 at St James' Park on Sunday.
The two sides met at St James' Park on Sunday in desperate need of all three points to try to escape the relegation zone.
It had appeared that those would be Sunderland’s after Jermain Defoe opened the scoring for the Black Cats.
However, a late header from Aleksandar Mitrovic saved Rafa Benitez’s side as the two teams were forced to share the points.
The result suited neither side, and Wijnaldum admitted he was disappointed after the game.
“We came back but I’m still not happy as we wanted to win and we didn’t,” he told Sky Sports.
“If you look at the whole game, we had to win but it’s a draw and we go on.
“The goal was really important. It’s good that we came back but I’m disappointed because we wanted to win this game and I feel we had great chances.”
The Magpies will need to leave their disappointment behind quickly though as they seek to escape relegation before the end of the season.
They now sit three points from safety after Sunday’s draw, with Norwich City’s win over West Bromwich Albion taking them clear of the relegation zone.
That is why a point against their rivals was no use to Newcastle, with that result sure to have given the Canaries extra incentive to maintain that gap between now and the end of the season.
With Newcastle having a game in hand though, they know that a win in that game has become vital to their survival hopes.