Former Inter Milan defender Antonio Paganin has challenged Roma striker Romelu Lukaku over comments this week.
Lukaku, on-loan at Roma from Chelsea, raised his issues over the summer at a Belgium presser this week, hinting he could expand on the controversies at a later date.
But Paganin is unimpressed and has told Lukaku to speak or keep quit.
He told TMW Radio: "I had appreciated the silence so far, the moment you say 'I'll speak' the respect that was there disappears.
"Something is certainly escaping us, but now you either speak or shut up."