Video: Rob Heffernan pays a funny tribute to Derval O'Rourke who retired earlier today

The Cork sense of humour shines through here...

Some sad news for Irish athletics today as Derval O'Rourke announced her retirement from competitive action after a brilliant career representing Ireland. The tributes have been pouring in all day since the announcement was made and rightly so, Derval is a legend.

Another Cork legend got around to paying tribute to Derval this evening as World Champion race-walker Rob Heffernan put his own unique twist on wishing his friend and fellow Corkonian all the best...