The France international's contract with Nice expires at the end of the season and his fine performances in 2015-16 have seen him linked with a number of big clubs in recent months.
Ben Arfa himself stated this month that he would be open to a move to the Ligue 1 champions and Blanc has now responded to the 28-year-old's comments.
"Hatem is an amazing player," Blanc said at a news conference.
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"All the talented players that we could approach or advertise themselves, we will keep an eye on them.
"Although we will obviously not sign every one of them."