The international prop is latest rugby star to opt for a move out of Scotland and he is going with mixed emotions.
Euan told the Daily Record: "I'm very excited about the move but the process of making the decision to leave Glasgow was undoubtedly the toughest one I've ever faced.
"I was born in Glasgow, raised there, went to school there and learned all my rugby there. When I became really interested in the sport, my big target was to play for Glasgow and then Scotland.
"I've been attached to the club for eight years as an apprentice and full-time pro and I've broken into the international scene. Now's the time to answer a fresh challenge."