Watford have signed left-back Yasser Larouci from French side Troyes.
Larouci, 23, joins the Hornets on a season-long deal from the Ligue 2 club.
He spent last season on loan at Sheffield United, playing 13 times for the Blades as they were relegated from the Premier League.
The Algerian international, who represented France at under-21 level, joined Troyes from Liverpool in 2021 where he made 47 appearances in two seasons before returning to England last year.
