The rivalry between these clubs has only escalated after the failure this month of a swap deal between Guarin and Vucinic.
"There was a verbal agreement with Inter, so we contacted him and discussed terms. That is how things usually progress. I've discussed this enough and want to take the tone to a calmer level ahead of this game," Marotta told Sky Sport Italia.
"In this case I felt it important to speak up because Inter named us in their statement and as the two people most damaged by the whole affair were Guarin and Vucinic.
"Inter have made many changes this season and there are difficulties in that situation. The club is prestigious and the Coach talented, so I am sure they will get back to success soon.
"Of course a different thing happened to us, as Antonio Conte was able to win the Scudetto in his first season, but that was down to the great work from the Coach and club."
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