Oliver Glasner’s side emerged in the second-half with renewed purpose and, five minutes in, it was almost a case of signing teeing up signing when Kamada’s clever flat cross whistled just over the head of Riad, who dove to meet the ball – but it narrowly evaded him.
Further efforts from distance followed, Will Hughes trying his luck with a volley from Ayew’s corner on the hour mark – but the midfielder did not quite catch his effort cleanly.
In typical pre-season fashion, a succession of substitutions followed after 62 minutes, with Cheick Doucouré, Naouirou Ahamada, David Ozoh and Jesurun Rak-Sakyi all entering the fray.
As the half wore on, so too did Kamada’s influence on the game, the Japan international beginning to spray some lovely passes around the Charlton box – before coming close to finding the equaliser on 58 minutes.
After a cross had been flicked on by a Charlton defender, Kamada retrieved the ball on the left, cut inside a defender, feinted to cross – and instead fired a fierce effort towards the bottom near corner. The ball took a nick and whistled just wide of the post – but it was a sign of things to come.
The match was beginning to open up and, on 75 minutes, it could have been put out of sight. Tyreece Campbell’s incisive run from the left flank led to the winger curling an effort from 25 yards which bounced round Sam Johnstone but, thankfully, hit the upright before ricocheting away.
Then, in the 90th minute, Rak-Sakyi’s moment of magic – and against the side who he starred for on loan two seasons ago, no less.
A quick ball forwards from David Ozoh was laid off by Kamada into the winger’s path and, stepping inside two Charlton defenders, he feinted to shoot – sitting one marker down – before advancing into the box and rolling a precise right-footed effort across goal and into the bottom corner.
It was the least Palace deserved for their efforts on a sweltering day, and one which proved a valuable exercise for an Eagles side only a small amount of time into their 24/25 training.