Internationals: Murrays helps crush Faroes
The Hornets midfielder started the game for Noel King's side and was withdrawn with 16 minutes to play, with the game already won.
Fellow Republic of Ireland Under-21 international Connor Smith was unavailable due to suspension, but could feature against Montenegro on Tuesday.
Also on Friday, Scotland drew 0-0 at home against the United States, with Ikechi Anya an unused substitute.
Scotland now travel to Norway on Tuesday.
Jonathan Bond (England Under-21s) and Cristian Battocchio (Italy Under-21s) are in action on Tuesday too.