Chelsea could make an approach to land Nottingham Forest defender Murillo at the end of the campaign, according to The Daily Mail.
The west London giants have had a disappointing start to December. They have yet to win a game and recently suffered a 2-1 loss to Atalanta on the road in the Champions League.
The Blues are unlikely to go on a spending spree at the start of 2026, but the scenario could be completely different over the summer.
A new centre-back could be among the priorities for the manager and reports claim that they could make an approach for Murillo's services.
The Brazilian is prepared to pursue a new challenge at the end of the season, but Forest are unlikely to let him go on the cheap.
The Tricky Trees are likely to demand at least £55 million to part ways with the left-footed centre-back during next summer's transfer window.
They have no plans to negotiate a mid-season transfer.