Nkunku, 27, has fallen out of favor and struggled to regain his form under Maresca's leadership, leading many to speculate that he may leave the club this summer.
According to reports, Manchester United is interested in signing Nkunku to strengthen their attack, which had a disappointing Premier League season.
It is claimed that Chelsea has already had discussions with Nkunku's representatives, although no official offer has been made.
Before their FIFA Club World Cup match against Espérance Tunis, Maresca addressed the rumors surrounding Nkunku's future.
When asked about Nkunku's status, Maresca stated, "Christo is with us. He's our player. He's doing very well in the last four, five days. For sure, tomorrow we are going to do rotation. We'll see if there is any chance for the ones that are not playing a lot."
