The teenager left the Hoops at the start of the season after following in his father's footsteps by playing for the club.
It was a weekend of mixed fortunes, with many players still awaiting their return to action as the Premier League remained on ...
The Irish defender has since replaced Porteous, who found himself largely sidelined during his final month at the club.
Here are the player ratings of Plymouth Live's Argyle reporter Chris Errington from the Pilgrims' 0-0 draw away to Watford at Vicarage Road You can give your marks too using our special widget ...
In spite of an improved second-half performance, the draw narrowed Watford’s chances of making the Championship play-offs.