The 19-year-old signed for the Addicks in May 2019 on a twelve-month contract following trials at The Valley where his consistently outstanding performances left them keen to secure his services.

He had previously been on the books at Stevenage and joined then-Southern League Division One Central side Dunstable Town last season where he quickly made a name for himself putting in a string of fine performances.

Although first team performances were limited due to injury he proved to be a keeper with bags of ability, confidence, enthusiasm and enormous potential.

Harness will be available for tonight's game at New Lodge against league leaders Wealdstone.