Chelsea have had a bid of €40 million for centre-back Alessio Romagnoli knocked back by AC Milan, according to Daniele Longo of Calciomercato.com.
The Rossoneri aren't interested in selling, scuppering the plans of new Chelsea boss Maurizio Sarri, who is making reinforcing the heart of defence a priority.
This article will be updated to provide more information on this story as it becomes available.
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