Wollacott has not played active football since November when he suffered a finger injury in a League One match against Burton Albion.
His finger fracture occurred just a week before the 2022 World Cup, ruling him out of the tournament.
He was set to represent the Black Stars in Qatar as the first-choice goalkeeper, having occupied the better part of the last 12 months.
Wollacott was later left out of Ghana’s squad for the World Cup, although he traveled with the team to Qatar.
In his place, Danlad Ibrahim, Abdul Manaf Noorudeen and Lawrence Ati Zigi were invited, who were selected as coach Otto Addo’s first-choice goalkeeper during the tournament.
Having now taken a major step towards regaining full fitness, his progress has impressed Charlton Athletic’s U21 coach Danny Senda.
“JoJo was a really calming influence behind the back three,” Senda said after Tuesday’s friendly, as quoted by 3Sports.
“He made really good decisions and that enabled us to take control of the game with his ability. He pulled off a really good, point-blank save for us midway through the second half, which was the defining moment of the game.
Wollacott hopes to rejoin Charlton’s senior squad in the coming weeks as they aim to climb the league table in League One.