He signed a contract extension at Charlton towards the end of last season and I expect he'll be used in the pre-season games for Charlton as Dean Holden looks at the players he has available to him. If something was to happen with Chin, I'd not expect to see him back this side of Christmas, but I'd also expect Charlton to want him to play at a higher level than National League South in order to progress him.
https://www.bbc.co.uk/sport/football/65 ... s%20season.