Chelsea are watching Inter Milan pair Milan Skriniar and Antonio Candreva.
FCInterNews.it says Chelsea will have scouts posted for Inter's game with Atalanta to check on the duo.
Inter midfielder Candreva has been a long-term target for Chelsea boss Antonio Conte, while defender Skriniar has been outstanding this season.
Skriniar only joined Inter over the summer from Sampdoria for €23m, but his performances have seen that valuation sky-rocket in just a couple of months.
The 22-year-old Slovakia international even made his mark with two goals in 12 Serie A appearances.