 He also spent some time playing in the United States.Following an impressive trial at an Irvine Meadow tournament with the jags, newly promoted Scottish Premiership side Partick Thistle signed Duggan in 2013.After spending some time in Thistle's under 20 squad, Duggan moved to Scottish League One side Forfar Athletic on 21 March 2014, on loan until the end of the 2013–14 season.