Stirling County Fagerson was drafted to
Stirling County in the
Scottish Premiership for the 2017-18 season.
Glasgow Warriors Fagerson made his debut for Glasgow Warriors in a 40–23 win at
Treviso in October 2014 going on to become the youngest player to reach 50 caps for Glasgow Warriors at the age of 21. In 2023 Fagerson and his brother
Matt Fagerson were selected in the 33 player squad for the
2023 Rugby World Cup in France.
British and Irish Lions In May 2021 Fagerson was selected in the 37-man squad for the
2021 British & Irish Lions tour to South Africa. Fagerson took to the field for the first tour match against the Sigma Lions at
Ellis Park Stadium in
Johannesburg, becoming Lion #848. In May 2025 Fagerson was selected by Head Coach
Andy Farrell for the
2025 British & Irish Lions tour to Australia. He was later forced to withdraw from the tour with a calf injury and was replaced by
Finlay Bealham. == Career statistics ==