In 2012 Lee represented the
Wales national under-20 rugby union team, in both the
2012 Six Nations Under 20s Championship and
2012 IRB Junior World Championship. He was part of the U20 squad that defeated
New Zealand U20 in the Junior World Championship for the first time. In October 2012 he was called into the Wales squad for the
2012 end-of-year rugby union internationals, but did not make his debut. He made his full international debut versus Argentina on 16 November 2013 as a second-half replacement. He came off the bench in the next two test matches, against Samoa and Australia. Lee was selected in the squad for the
2014 Six Nations Championship, but did not gain any further caps. Lee was selected in the squad for the
2014 Wales rugby union tour of South Africa, coming off the bench in the first test. He made his first start in the second test, as Wales narrowly lost to South Africa, in place of stalwart
Adam Jones. Lee was cited for a headbutt on
Flip van der Merwe and received a five week ban. By the autumn, Lee was pushing for first choice, starting all four tests in the series. For the
2015 Six Nations Championship, Lee retained the starting berth, but was ruled out of the second match against Scotland, having suffered a concussion in the opening fixture against England. He returned to the team after recovering, but suffered an achilles injury against Ireland, which ruled him out for the remainder of the season. Lee overcame odds to recover in time for the
2015 Rugby World Cup. During the tournament, Lee scored his first international try, coming against Uruguay. Lee started all five matches for Wales during the
2016 Six Nations Championship. During the match against England, he was racially abused by prop
Joe Marler, for which Marler received a two match ban and £20,000 fine. Lee also played against England in a warm up match ahead of the
2016 Wales rugby union tour of New Zealand. Lee played in all three of the tests, starting the final two. A knee injury ruled Lee out of the
2017 Wales rugby union tour of Tonga and Samoa. Another achilles injury would see Lee unable to participate in the
2017 end-of-year rugby union internationals. Lee recovered in time to be selected for the
2018 Six Nations Championship, starting the first three matches of the series. A back injury prevented Lee from featuring in any of the tests on the
2018 Wales rugby union tour to Argentina and the United States. Finally, a hamstring injury kept Lee out of the
2018 end-of-year rugby union internationals. Lee recovered in time to participate in the
2019 Six Nations Championship, featuring in the first two tests before succumbing to injury, as Wales went on to win the
Grand Slam. Lee was not selected in the squad for the
2019 Rugby World Cup. After more than a year out of international reckoning, Lee returned to the Wales squad for the
2020 end-of-year rugby union internationals, playing in four of the tests. Injury would prevent his selection for the
2021 Six Nations Championship. Lee earned a recall to the Wales squad for the
2021 July rugby union tests, following an injury to
Tomas Francis, but he did not appear in any match day squad.
International tries == Personal life ==