|Irish name||Pilib Mac Mathúna|
|Position||Left Corner Back|
5 September 1987 |
|Height||1.83 m (6 ft 0 in)|
|Occupation||Strength & Conditioning Coach|
McMahon won the 2008 O'Byrne Cup with Dublin, defeating Longford in the final. He made his Championship debut that year as a sub against Louth. He played Interprovincial Championship Football for Leinster and won 2 Dublin Under 21 Football Championships with Ballymun. He was named on the 2010 GPA Gaelic Team of the Year. He replaced James McCarthy as a sub in the second half of the 2011 All-Ireland Senior Football Championship Final, a game which Dublin won by 1-12 to 1-11 against Kerry.
In 2010 he bit Paul Kerrigan of Cork in an All Ireland semi final which was captured on camera.In August 2015, he headbutted Aidan O'Shea on live television during an All-Ireland semi-final at Croke Park. O'Shea later confirmed that McMahon had headbutted him. McMahon also was accused of gouging Kieran Donaghy's eye during the 2015 All-Ireland Senior Football Championship Final victory.
- "News". hill16.ie.
- Return trip to Dublin by Conor McKeon, Evening Herald  Wednesday 9 June 2010
- "News". hill16.ie.
- Blake, Ben (30 August 2015). "Philly McMahon was a lucky man after headbutting Aidan O'Shea: The Dublin back wasn't punished after the incident early in the second half".
- Cummiskey, Gavin (30 August 2015). "Aidan O'Shea: 'Yeah, I was headbutted alright': Mayo full-forward was in for some tough treatment from Dublin's Philly McMahon". The Irish Times.
- "http://www.sportsjoe.ie/gaa/dublins-philly-mcmahon-accused-of-eye-gouge-against-kerry-as-fans-scream-blue-murder/40611". 20 September 2015. Archived from the original on 20 September 2015. External link in
- "REVEALED - Philly McMahon on what he said to Colm Cooper at the end of heated All-Ireland Final". Irish Independent. 22 September 2015. Retrieved 22 September 2015.
- "Trevor Croly new manager". 7 November 2012. Archived from the original on 30 August 2015.
- Keane, Paul (26 August 2015). "Cross-channel call tempts Philly McMahon". Irish Examiner.
The former Shamrock Rovers strength and conditioning coach has started every game for Dublin...