Martin-Jenkins has taken over 370 first-class wickets for Sussex
Sussex all-rounder Robin Martin-Jenkins has announced he will retire from first-class cricket this summer.
The 34-year-old is set to start a new career as a Geography and RS teacher at Hurstpierpoint College.
He told BBC Sussex: "The body is starting to hurt a bit so I thought it was a chance to stop while I was performing well.
"It's been an absolute privilege to play with some great players in a great team. It's been fantastic."
He added: "Playing in a team that's won trophies has given me much more pleasure than I ever hoped for."
The son of incoming MCC President and journalist Christopher Martin-Jenkins, he made his debut for Sussex in September 1995 against Yorkshire at Scarborough.
Martin-Jenkins has made one century and three 50s for Sussex in six county championship matches this year, as well as being a key part of the bowling attack.
"I've probably had less fear of failure while I've been batting and knowing I've got an end in sight has given me more energy to run in a bit harder when bowling," he said.
"If you'd told me 15 years ago that I'd come out of my career with three championship wins and a few one-day trophies I'd have bitten your hand off."
Sussex CCC Chairman Jim May added: "Robin has been a fantastic servant to the club over the past 15 years.
"He has played a vital role in our sustained success and has certainly been an unsung hero of our three County Championship winning sides.
"Not only is he an excellent all-rounder, but he is also one of the genuinely nicest guys in the game.
"All of us here at Sussex are disappointed that Robin is leaving us whilst he is in the form of his life."
The current match with Worcestershire will be Martin-Jenkins' final four-day game at Hove, and he will be unavailable for selection after their 40-over match against the same opponents on 19 July.