Agents for Pogba were in Turin on Monday to discuss Bosman terms with Juve.
Allegri worked with Pogba in his past spell with Juve and was asked about the Frenchman after last night's 2-2 draw with Lazio.
"I do not know him, who is he? Is it an English word? I have completely forgotten him, because it is so many years ago," Allegri joked.
Juve chief Maurizio Arrivabene, meanwhile, stated yesterday they would not speak with Pogba until he is formally a free agent.
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