Chris Powell will continue to look at both players and systems as the countdown to the new campaign continues.
Following the successful trip to Spain, it is the more homely surroundings of Kingsmead for the Addicks next match.
Young strikers, Michael Smith and Joe Pigott, are likely to be given the opportunity to stake a claim, though there are suggestions that Smith could be moving to Wimbledon on loan.
Powell has made encouraging noises about trialist, Richard Wood, and the rugged defender will be another looking to further impress the boss.
The sweltering conditions will play a part and the manager may have to make more substitutions than he would like at this stage of the preparation.
It is unlikely that any new faces will be involved but eagle eyed fans will be watching the bench with more than usual interest.
Wimbledon will give Charlton a good workout and former Valley youngster, Harry Pell, will be particularly keen to impress.