COPENHAGEN: Thomas Gravesen, one of Denmark’s key players, quit the national team on Friday after eight years to fully devote himself to his new club Celtic. The 30-year-old midfielder, who transferred from Real Madrid to Scottish Premier League team Celtic on August 30, first represented Denmark in 1998 and has since earned 66 caps. The hard-tackling Dane scored five times in his international career and was credited with having a hand in many others. Coach Morten Olsen said he has known of Gravesen’s decision for some time and had tried to persuade him to stay on the team.