Former Juventus striker Aldo Serena is shocked by Paul Pogba's doping controversy.

The Juve midfielder has been provisionally banned after testing positive for testosterone.

Serana told La Stampa: "This news comes like a bolt from the blue, I don't think it's possible or right to comment.

"There are too many aspects and all of them very delicate, which we should know thoroughly out of respect.

"But certainly, we cannot help but recognise the misfortune that has been accompanying Pogba and Juventus since this second life together began."