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Seth Twumasi may have played his last game for Maidstone.
The right-back has missed United's last three matches due to his academy commitments in Ghana.
There's also still interest from League 2 Cheltenham, who wanted to sign him around the time he joined Maidstone.
Stones boss Jay Saunders said: "Seth's been away setting up his academy in Ghana. It's a big thing for him.
"The honest answer is I don't know but he probably won't be back with us.
"I think there is an offer from Cheltenham but this academy is for his future, it's a bigger thing for him to set it up and get it right.
"You're not a player for ever and, in the long run, the academy is for his future."