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Charlton will play a testimonial for their popular groundsman Colin Powell as part of their pre-season preparation.
Powell, 59, a former Addicks winger who is credited for creating many of leading scorer Derek Hales' goals, also played for Gillingham.
Manager Alan Pardew confirmed: "We are trying to organise a testimonial match for Paddy Powell and all being well we will be able to attract a top club for that."
The Addicks will also play their traditional pre-season friendly at neighbours Welling and plus Ebbsfleet United whose ground they use for reserve team games.
They round off their pre-season schedule of friendlies at home to French club Nancy. Pardew has not ruled out an overseas trip as part of that preparation.