Rory Best is widely-regarded as one of Ireland's greatest ever captains. Entrusted by Joe Schmidt to lead the side that looked on the wane following the 2015 World Cup, Best's inspirational leadership skills and abrasive qualities proved to be the foundation stones for the most successful period in Ireland's history.
His first year in charge saw Ireland complete a hat-trick of victories against the southern hemisphere 'Big Three', including leading his side to a first ever victory over world champions New Zealand in Chicago, a feat that etched Best's place in Irish sporting folklore and ended the All Blacks' record-winning streak of 18 Test victories.
Ireland's annus mirabilis under Best's captaincy would come in 2018 however, when he led the side to only their third Grand Slam title, culminating with a famous victory over England at Twickenham, and a record-breaking run of 12 successive Test victories.
When he steps down as Ireland captain at the age of 37 following the World Cup in Japan, his fourth tournament, history will no doubt also judge Best to be one of their greatest forwards.