However Roma were determined to keep Nainggolan after losing Miralem Pjanic to Juventus earlier this summer.
And it is claimed Nainggolan’s agent met Sabatini and director general Mauro Baldissoni yesterday to discuss a new four-year contract and salary increase to £3.6m.
Chelsea's only midfield signing this summer has been N'Golo Kante from Leicester for £32m.
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