The Toughest Trade explores how professional sports compare to amateur GAA games. In the first programme in this two-part series, Donegal footballer Michael Murphy leaves his club Glenswilly for France and Clermont Auvergne to try rugby with the Top 14 team, while former Welsh Rugby international Shane Williams tries his hand at Gaelic football. Both players will spend a week immersing themselves in their new sport and club before taking part in a final challenge designed to test whether GAA club players can compete at the same level as professional athletes.