McGlynn broke into the Derry side at the age of 17. He made his debut in April 2001 in a 1-0 home victory over Kilkenny City with his first goal for the club arriving 10 days later during a 3-3 draw with Shelbourne.
McGlynn broke into the Derry side at 17 years old. He made his debut in April 2001, scoring a goal in a 1-0 home victory over Kilkenny City with his first goal coming 10 days later during a 3-3 draw against Shelbourne.