Zuniga, the 30 year old Colombian wing back on loan from Napoli, was the man who struck the killer second goal just six minutes from time on Sunday – after sharing a joke with Jose Mourinho on the touchline just minutes before he went on as a substitute.
Zuniga said: “I know him from Italy, we just shook hands and talked about the past - but I was only thinking about doing my best for Watford.
“We were just joking, asking how each other was."
He added: “The win was down to the team, and the mentality. That is the mentality from our manager, a winning mentality.
“That is what the manager wants, a winning mentality where when we go onto the pitch we don't ever look at the name on the back of the shirt. We do our job the best we can. That is the manager's opinion on how to play football."