[1] Lake first played for Bridgend Ravens and Neath RFC at youth level, before joining the Ospreys academy as a back row.
[6] On 20 January 2023, Lake scored the Ospreys first try against Leicester Tigers as they secured their place in the knockout rounds of the 2022–23 European Rugby Champions Cup.
[7] Lake made his return to fitness in time for the round of 16 match against the Saracens, coming off the bench in the 35–20 loss.
[8] Capped at Wales under-20 level for the first time in 2018, Lake was selected to captain the side at the 2019 World Rugby Championship.
[10] Lake received his first call to the senior Wales squad for the 2020 Six Nations,[11] although he would not make any appearances at the tournament.