Ciaran rejoined Drogheda in January 2017 having departed the club in 2014. The Newry native McGuigan began his career with Glenavon in the IFA Premiership in 2007 before moving to Armagh City and then Dundalk.
The 27-year-old spent two years in Sweden with Syrianska before joining the Drogs under Robbie Horgan and he was an ever-present as the Boynesiders finished 9th in the league.
A move to America in 2015 saw the defender line out for Lansdowne Bhoys FC and he will now add competition at the heart of the Drogheda defence along with Lloyd Buckley, Kevin Farragher and Luke Gallagher as United look to consolidate their place in the Premier Division.
Armagh City (2008-2009)
Drogheda United (2014)
Lansdowne Bhoys (2016-2016)
Drogheda United (2017-)