Nuno has refused to speak on Tottenham's interest in Inter Milan striker Lautaro Martinez.
Spurs are reportedly in negotiations with Inter over a deal.
The north London club are set to pay £60m for the Argentina attacker.
Speaking after a friendly win over Arsenal on Sunday, Nuno was coy on the rumours.
"I will not speak about any player," he said.
"I will only speak about my players, Tottenham players, nothing else."
