Dublin Marathon: Best day of my life, says Scullion

In so many ways, this was a day of celebration. New stars emerged for Irish marathon running in Stephen Scullion and Aoife Cooke, home-grown heroes of what was a glorious festival of celebratory suffering on the streets of the capital.

And yet, for all that the 40th edition of the KBC Dublin Marathon was met with suitably splendid autumn sunshine, there was no escaping the dark cloud of suspicion that hung over the athlete who led the 22,500 runners home.