Santon made his own return to the Nerazzurri - on-loan - last week.
"We met this year at the match against Liverpool," Santon said. "We got on together, he has had problems but this is the past.
"Mario will react, he is strong and will do his speaking on the pitch.
"I do not know if he will return to Italy, I'm not a sporting director or an agent. He will decide."
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