Walter Mazzarri was left to rue missed chances as Watford’s failure to take anything from their Premier League clash with Hull City left the Italian angered.

A straight red card for Hull’s Oumar Niasse looked to have turned the tide in Watford’s favour, but they failed to make their numerical advantage count as the hosts ran out comfortable 2-0 winners.

Mazzarri’s side had presentable chances to take the lead, most notably through Etienne Capoue and Miguel Britos, and the Watford boss felt his side should have taken a share of the spoils.

“We made silly mistakes and it was one of those games where if we didn’t win, we should have at least drawn and that makes me really angry,” Mazzarri said.

“We need to improve up front and we should have at least scored one or two goals. When you make so many mistakes, I knew the first counter attack we would pay for it.”

Watford were caught out just after the hour as a sweeping Hull counter ended in Lazar Markovic breaking the deadlock, before Sam Clucas sealed the win with a stunning second.

The win takes Hull’s unbeaten run at home to eight games and Mazzarri believes the Hornets may have misjudged the threat the Tigers pose.

“We underestimated the danger. The first counter attack they just attacked with pace,” he said.

“We did well before the first goal and we were in good possession we just needed to score, but we didn’t.

“They were very, very good and were really concentrated. It was hard to play against and they have been doing really well at home.”