Berghuis has been linked with a switch to Vicarage Road for the past few days, and he has told De Telegraaf that a move is ‘assured’ having visited London to agree personal terms with the club.
The winger said: "Watford and AZ have a couple of small points to reach an agreement. What it is all about, I do not know. But John van den Brom [AZ head coach] and Earnest Stewart [sporting director] assured me that it will be fine. Once Watford and AZ are fine, I can sign for four or five years.”
Considering the number of players who have been linked with a move to Watford this summer, it was a surprise when Berghuis’s name came from nowhere with a deal almost completed.
Last week, the Alkmaar winger was said to be on the verge of a switch to Hertfordshire, and although the deal has yet to go through, the 23-year-old has admitted that it is all-but complete.
He has visited London to look around the club and undergo talks, and appears happy to move to the newly promoted Premier League club, with only Watford and AZ to finalise an agreement before the transfer can be formalised.
This is a boost to the Hornets, who are looking to bring in natural wingers ahead of the new season.
Berghuis, who plays on the right side of a front three - although he is capable of playing anywhere in an attacking position - will one of few natural wide-attackers at the club, a position that needs filling since the appointment of Quique Sanchez Flores as head coach.
He has been favouring a 4-2-3-1 system during pre-season, and it is likely that Berghuis will be signed to take up one of the inside forward positions as a key first-team starter.