Premise: Traffic lane changes are coming into effect on some of the busiest roads in Dublin City Centre this weekend. There’ll be single lane traffic around O’Connell bridge and on the spot fines will be handed out to anyone flouting the new rules. Kerry and Mayo fans heading to the All Ireland semi final are urged to avoid the city centre and take alternative routes to Croke Park. Brendan O’Brien is head of technical services with Dublin City Council:
Hypothesis: Brendan O’Brien's son is playing in the semi final game.