ADO Den Haag picked up a welcome point in their battle against relegation from the Eredivisie against fourth-placed Heerenveen.
The home side defended resolutely throughout to limit Heerenveen to a handful of chances and improve to 25 points from 24 games.
Defender Kenneth Omeruo made his debut for ADO after joining on loan from English Premier League side Chelsea and played 89 minutes before being substituted.
The visitors were the first to threaten after nine minutes when Bas Dost's header from a Luciano Narsingh corner was cleared off the line by Aleksandar Radosavljevic.
But it took another 20 minutes for the next decent chance to be created as Christian Kum was able to dispossess Dost when it looked like the striker would be free on goal.
Geert Arend Roorda then set up Narsingh in the final minute of the first half, but the striker fired inches wide.
Heerenveen started the second half brightly and Viktor Elm found Filip Djuricic free on the right, but Djuricic saw his shot tipped round the post for a corner by home goalkeeper Gino Coutinho.
ADO finally threatened to score themselves in the 72nd minute when substitute John Verhoek, who had only been on the pitch a few seconds, headed over from Jens Toonstra's free-kick.
The visitors had the last chance of the game soon after, but Darryl Janmaat's long-range effort was saved by Coutinho as the match finished goalless.