Here, RUCK takes a look at ten of the best players to have crossed the divide from Rugby League to Rugby Union.
10) Andy Farrell
Farrell earned eight England caps in a steady playing career in Union. He made a tryscoring appearance for England in the 2007 World Cup, but his achievements in League remained the biggest success of his career on the field, winning five league titles, four Challenge Cups and two Golden Boot awards (awarded to the best player in the world), in his ten-year career with Wigan Warriors.
The now 40-year-old has enjoyed a fine coaching career in his adopted sport, helping Saracens to the 2011 Premiership title before playing a key role in England’s growth, which has included his 24-year-old son, Owen, in recent years.