Seattle native Alex Mackenzie played in Major League Rugby during the 2026 season. He represented the New England Free Jacks for his entire MLR career.

Born in Japan but raised in Seattle, Crossover athlete Alex Mackenzie grew up playing gridiron football all through high school, playing both linebacker and running back. His first introduction to rugby was in his senior year, and he quickly fell in love with the sport as a back row. Mackenzie enrolled at Central Washington University and represented the Wildcats for 5 seasons, becoming an All-American in 2019. He graduated from CWU in 2021 and was clearly an impressive player, as he was invited to try out for a number of Japanese clubs.

Alex Mackenzie signed with the Urayasu D-Rocks in the Japanese Rugby League One in 2022 and represented them for 3 seasons, playing in both JRLO D1 and D2 leaving the club in June of 2025. On 12th December 2025, the New England Free Jacks announced the addition of Alex Mackenzie for their 2026 title defence.

NARDB Player #1,643