The previous Sweden international rejoined Milan a month ago and has had a moment effect with two Serie A goals and an assist in five appearances.
“It’ll at last be up to him, how he feels and to what extent he needs to proceed,” Massara told the Italian media.
“He really is a marvel, and we are extremely content with his exhibition.”
The 38-year-old is right now under agreement at San Siro until the end of the season however has the alternative to reach out for an additional a year.
Ibrahimovic is in his second spell at the club, where he scored 56 goals in 85 matches somewhere in the range of 2010 and 2012.