Glennon, 27, made 12 appearances for St Johnstone after joining them from Falkirk in January and even managed to score against Ross County in March.

Huddersfield boss Peter Jackson told the club's website: "I've followed his career since he was at Carlisle when he had three outstanding games against us.

"He has always impressed me and I am delighted he's signed for us."

St Johnstone manager Owen Coyle said: "We just can't compete with the money being paid down there.

"But Matt did well for us and he goes with our best wishes."