Watford are releasing defensive pair Miguel Britos and Tommie Hoban.
Both leave Watford following the expiration of their contracts at the end of the month, the club have announced.
Britos made 74 appearances and scored twice after joining Watford from Napoli in the summer of 2015, while Watford academy graduate Hoban played 58 times, scoring twice, having made his Watford debut as a 17-year-old in May 2011.
Goalkeeper Heurelho Gomes is also out of contract at the end of the June, however the Hornets have confirmed that discussions are ongoing about the best option for the Brazilian's future.