The Ligue 1 outfit officially presented defender Thiago Silva as their player on Friday, during which Leonardo shed light on the Parisian club's future transfer activity.
"This will be the last presentation of a player this season," said the Brazilian. "[Our dealings] are over."
However, Leonardo added that PSG could still push for a late signing of a right-back.
"Normally, the transfer window is over," he said. "It is true that [Milan] Bisevac has gone to Lyon.
"We have 10 days and we will see if we can get a right-back. But in normal circumstances, our business is over."