O'Sullivan leads tributes to Simon Best

Irish coach Eddie O'Sullivan has been leading the tributes to Simon Best following his retirement from the professional game.

The 30-year-old Ireland and Ulster prop has been forced to end his career on medical advice after suffering an irregular heart rhythm during last year's World Cup.

He has been under constant monitoring since and, even though he has not suffered any further problems, he has been advised against continuing to play.

O'Sullivan has described him as "incredibly talented and hard-working" and "a model professional".