Middlesex batsman Adam London has signed a new one-year contract.
The 24-year-old left-hander scored almost 800 runs for the club's second XI last season at an average of just under 40.
Managing director of cricket Angus Fraser said: "Despite a lack of first team opportunities Adam continues to impress the management team.
"We believe he has the game that will allow him to score runs in first-class cricket when opportunities come along."
London has scored three half-centuries in his nine first-class appearances for Middlesex.