The Hornets have signed the Moroccan international on a reported £6.1million deal which went through prior to the clash with Swansea City at the Liberty Stadium.
28-year-old Dutch-born winger Amrabat arrives at Vicarage Road having having spent his career mainly in Holland but also enjoying stints in Turkey and Spain.
OFFICIAL: #watfordfc are delighted to announce the signing of versatile attacker Nordin Amrabat from Malaga. pic.twitter.com/XDcf33auNj
— Watford FC (@WatfordFC) January 18, 2016