[4] Near the end of the season, Grady suffered a serious knee injury, which ultimately ruled him out for a year.

[3] He was selected for Wales U20 while still eligible for the U18 side, playing in the 2020 Six Nations Under 20s Championship, until the tournament was postponed due to the COVID-19 pandemic.

[9] On 3 November 2022, Grady was called up by Wales to train with the squad ahead of the Autumn Nations Series.

[12] Grady was selected for the Wales training squad ahead of the 2023 Rugby World Cup, and came off the bench in the first warm-up match, a win over England.

[16] Grady moved to the wing for the first fixture of the 2024 end-of-year rugby union internationals, but was injured early on in the opening match, and subsequently ruled out for the remainder of the series.

Julie, his mother, played basketball for the Rhondda Rebels, and represented Wales in the Commonwealth Games.