Bursac, however, has confirmed the interest of Tottenham.
He said: "I can confirm that the lad has requests from all over Europe.
"Genoa is very interested in the guy, but the situation at the moment it is quite clear.
"For the time being a farewell from the Red Devils for my client is excluded.
"Buttner is fine at Manchester United and, if the club want to bet on him, the boy will be happy to stay at Old Trafford for the rest of the season."
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