The last time Watford took on Derby County, the Hornets suffered a 5-1 defeat. It was a performance Gianfranco Zola describes as "one of the worst" of his reign at Vicarage Road.
The two sides meet again on Saturday but Zola insists his players will be focused on maintaining their promotion bid rather than looking to avenge the September defeat.
"I think we want to win the game because we are in a good moment and we are fighting for something important," the Hornets head coach explained.
"I don’t want to approach the game thinking about what happened in the first match. I think it is important that we focus and we also have to be determined to win the game.
"We need to be focused in our mind about what we have to do. That is so important for us."
On the heavy defeat at Pride Park, Zola added: "It was certainly one of the worst games [during my time at Watford]. That match we were really bad and we were totally out of the game.
"In terms of the score it has been the worst. We have played badly in other games but in that match we were well beaten."