Chelsea manager Maurizio Sarri is keen to strengthen his defensive options in the immediate future, according to Calciomercato, and has identified Italian central defenders Mattia Caldara and Alessio Romagnoli as potential targets.

The Blues were on the lookout for a new centre-back throughout the summer transfer window but saw their efforts come to no avail. Chelsea pursued Juventus star Daniele Rugani but were unable to lure him away from Turin.

However, Sarri has wasted no time in identifying new targets to bolster his options, according to Calciomercato, lining up new AC Milan stars Caldara and Romagnoli.

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Chelsea were linked with a move for Caldara in the summer, as they lined him up as an alternative to Rugani. However, the 24-year-old ended up departing Juve and joining Milan in a big-money deal.

Romagnoli, also, has committed his future to life at San Siro. He penned a new long-term deal at Milan in recent times and could prove to be a hard player to land for Chelsea.

Sarri has started the season with a favoured defensive duo of David Luiz and Antonio Rudiger but is seemingly still keen to add to his options at the next possible opportunity.