The following season Morgan was reselected for the 1921 Championship, and played in the first three games; losses to England and Scotland, and his last union international appearance a win over France.
During the mid-season break, Morgan was elected to become Llanelli's captain for the forthcoming 1921/22 season.
[3] He was unable to accept the role as during the same period he signed professional papers to join rugby league team Hull, the position going to his vice-captain Albert Jenkins.
[4] Morgan won caps for Great Britain while at Hull in 1921 against Australia (2 matches).
[2] Morgan played at second-row in Hull FC's 9–10 defeat by Rochdale Hornets in the 1922 Challenge Cup final during the 1921–22 season at Headingley, Leeds, in front of a crowd of 34,827.