Comfortable playing anywhere across midfield or behind a striker, Sean is one quarter of Drogheda’s most famous set of footballing brothers.
He was an integral part of Mick Cooke’s success at Monaghan United but his best season came under Roddy Collins as he scored 13 goals in 26 appearances in 2011 as Monaghan secured promotion to the Premier Division.
Sean didn’t stay around though as he rejoined Cooke at Drogheda where he enjoyed a highly fruitful campaign as the Boynesiders won the EA Sports Cup and finished runners up in the league.
He wasn’t retained the following year as he was apart of a struggling Shels side that was taken over by Johnny McDonnell towards the end of the season. Brennan once again joined forces with Mick Cooke at Athlone but they were unable to avoid relegation and the local lad started his second spell with United in January 2015.
Despite a disappointing season both personally and for the club, Sean re-signed for Pete Mahon’s side in 2016 as they aimed for an immediate return to the Premier Division. Their goal was achieved and Sean played a pivotal role as he scored six times in 29 games including netting a stunning opener in the 2nd leg play-off against Wexford Youths.
The Drogheda vice-captain agreed a new deal with the club in November.
Monaghan United (2008-2011)
Drogheda United (2012)
Athlone Town (2014)
Drogheda United (2015-)