Henry Pollock has been involved with Northampton Saints' academy setup since U13 level.He captained the Saints U18 side to the 2023 Academy League Final before going on earn captaincy for the England U18 Men's side. Pollock made his Gallagher Premiership bow as a replacement in Northampton's fixture away to Leicester in November 2023, and was named in Mark Mapletoft's England U20 Men Elite Playing Squad for the 2023/24 season. A pivotal figure in the U20 Six Nations title-winning squad, Henry earned Player of the Match awards for three of England's five games and was subsequently crowned Player of the Tournament. He was recently named in Mapletoft's 30-player squad for the 2024 World Rugby U20 Championship in South Africa.