Rayner made his Sussex bow in 2006 after working his way through the ranks at the county.
He is a tall off-spinner, standing at 6ft 5in, and a useful batsman - scoring a century on debut against the visiting Sri Lanka side.
Rayner played one LV County Championship match in 2007 as Sussex clinched the Division One title for the second successive year.
He was more used in one-day cricket, playing six Friends Provident Trophy games and five Twenty20 Cup matches.
With first-choice spinner Mushtaq Ahmed injured for much of 2008, Rayner played a much more prominent role for Sussex. He took 31 championship wickets and was rewarded with a new two-year contract.
However, Monty Panesar's arrival on the south coast served to check his progress and, following an initial loan move to Middlesex in 2011, Rayner made the permanent move to HQ on a three-year deal.
The German-born bowler enjoyed the most impressive campaign of his career to date in 2013 - a match return of 15-118 against Surrey making up a sizeable chunk of 46 wickets at 22.04.
A capable batsman, Rayner now finds himself among the group of slow bowlers jostling for England recognition in the wake of Graeme Swann's retirement.