In June 2011, Morgan turned down the chance to play for England Saxons in the Churchill Cup. If he had played for the Saxons, he would not have been allowed to opt for Wales.[3] On 4 January 2012, Morgan made the decision to make himself available to play international rugby for England. He had been due to qualify for Wales (having lived there for three years) in time for the 2012 Six Nations Championship. Morgan said the choice was a personal one, on the basis that he was born and bred in England.[4]
Morgan made his debut for England on 4 February 2012, coming on as a second-half replacement against Scotland in the 2012 Six Nations Championship. He played in all five of the six nations games, receiving the man of the match award in the final match against Ireland.[6]