Current club: Liverpool
Glen is a Londoner who usually plays at right-back but also has the pace to be a wing-back. He started with West Ham United but had spent seven weeks on loan at Millwall before making his Premier League bow for the Hammers at 18 as a substitute for Edouard Cisse in an away game at Charlton Athletic in January 2003.
After making 15 appearances in that debut season, he moved across London to Chelsea and won the Premier League title and the League Cup with them in 2005.
He spent most of 2006-07 on loan at Portsmouth and signed for the south coast club permanently at the start of the following season, winning The FA Cup with them in 2008.
Glen won his first England caps with the U15s, made 14 appearances for the Under-21s and was given his senior debut as a substitute for Gary Neville in a friendly against Denmark at Old Trafford on 16 November 2003. He was still a teenager.
He established himself in the senior side in the second half of 2008-09, starting six consecutive games and providing a hat-trick of ‘assists’ against Andorra at Wembley, and then started the first five internationals of the following season.