Essaid Belkalem will become part of a very small yet privileged club - which includes Hornets legend John Barnes - when the World Cup starts on June 12.
Belkalem should become one of only seven players to attend a World Cup whilst contracted to Watford.
Gerry Armstrong was at the 1982 tournament with Northern Ireland, John Barnes and John McClelland attended with England and Northern Ireland respectively four years later but then there was almost two decades until another Hornet went to world football's premier tournament.
In 2002 Pierre Issa played for South Africa before his Watford contract was terminated and Jay DeMerit featured heavily in 2010 for the USA before his Hornets deal expired.
This time around there should be two players in Brazil 2014 who are contracted to Watford.
Belkalem, whose loan deal with the Golden Boys was made permanent earlier this season, is in Algeria's 23-man squad and whilst he may have only played just over an hour for the Hornets this season, Arsenal and South Korea's Chu-Young Park's loan contract with Watford doesn't expire until June 30 so he joins the seven-man club.