Watford and Hull City played out a dour goalless draw as the home side missed the chance to move up to third in the Championship.
The Hornets had the best chance of an uneventful first half as Matt Ingram made a good low save from Joao Pedro's crisp strike.
The Tigers just about shaded the second half with Tyler Smith and Cyrus Christie forcing saves from Daniel Bachmann and former Watford midfielder Ozan Tufan skying an effort over the bar when well placed.
Rey Manaj could have won it for Watford in the final moments but he could not make a decent connection with Hassan Kamara's low driven cross and the game ended goalless.