Poyet left the club this summer, moving to West Ham after declaring that he would not sign an extension to his existing contract.
Despite making his debut in January 2014, and only becoming a regular by February, Poyet’s talents led him to be voted Charlton’s Player of the Year for the 2013/14 season - a remarkable feat given that he played just 20 league games.
However, upon departure, a void was left in the midfield, and head coach Bob Peeters had to look elsewhere to fill it.
Having agreed a deal for Standard Liege midfielder Yoni Buyens, the 26-year old completed a one-year loan to the club on June 21 - and he has been instrumental in leading the Addicks to an unbeaten start to the season.
He has scored two goals in six games from midfield - including the winning penalty against Watford at the weekend - and Peeters told the Evening Standard that he knew Buyens would be able to fill the void left by Poyet, claiming that ‘within two months, no one would even mention him any more’.
The coach said: “I played with Yoni when he was 17 and I saw great potential in him then
“As soon as Standard gave me a hint he was available, he was the first player I signed. At the time, there were issues with Diego Poyet.
“Poyet was a great talent but I knew within two months no one would even mention him any more.
“Yoni, with William Vainqueur, was part of the best central midfield partnership in Belgium.
“At Standard, they kept him a bit more in his position and he lost a bit of freedom to be the player he can be.
“Now he is showing what a player he can be and people who saw him last season say he did not play like he is playing at Charlton. He is happy and he is enjoying it here.”
Charlton host Wolves tonight, looking to claim a fourth win in four at The Valley. Dependant upon other results, a victory could see the Addicks top the Championship table heading into the weekend.