Dean Cosker      

A guileful left-arm spinner, Dean Cosker will notch up 20-years at Glamorgan in 2015, a career that has seen him win a Championship, enjoy one-day success and forge one of the most valuable slow-bowling partnerships in county cricket with Robert Croft.

Born in Dorset to Welsh parents, Cosker made his Glamorgan debut in 1996 and a year later played a full part in Glamorgan's third Championship title, including taking the wicket that sealed the pennant at Somerset. He went on to prove a more-than-useful foil for Croft in taking more than 500 first-class wickets.

But it's the limited-overs format where Cosker has proved most effective, where his slippery bowling and electric fielding - most often at backward-point - has been a great asset and helped his county to National League success in 2002 and 2004. His service was rewarded with a benefit season in 2010.

Cosker's first match, against Lancashire at Cardiff, came within a few months of completing his A-levels at Millfield School in Somerset and he was widely regarded as having a bright future in the professional game, having already represented England at Under-19 level. He toured with England A in 1997-98 and 1998-99 and while never materialising into the player he threatened to be as a youngster, Cosker's county career has been thoroughly successful.
ESPNcricinfo staff