The Italian international has been with Juve since childhood, as he grew up through their youth academy and broke into the first team in 2006.
Last week there had been reports of interest from Manchester United, who might be willing to pay the €30m price-tag.
Now Mercato365 claim Monaco have thrown their hat into the ring with direct contact from manager Ranieri.
The club has been on a spending spree since earning promotion to Ligue 1 and would comfortably pay the €30m required to pry Marchisio away from Turin.
Ranieri already worked with the midfielder at Juventus from 2007 to 2009.
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