Club game concussion left Dublin's Seán McMahon dazed and confused

MacMahon said that since suffering the concussion, he's realised that second impact syndrome is a 

SYSTEM SHOCK: Seán MacMahon of Raheny in action against Kevin Stephenson of CastleknocK. Picture: Piaras Ó Mídheach/Sportsfile

Dublin football defender Sean MacMahon has revealed that a concussion injury suffered on club duty last month came as 'a shock to the system', leaving him dazed and confused.

The powerful Raheny man, who started 13 of Dublin's 15 league and Championship games in 2024, took a heavy knock to the face early in a club SFC group game against Castleknock.