Chelsea are being linked with massive moves for a pair of Spanish midfielders in January, in reports coming out of Spain.
Atletico Madrid midfielder Koke, who is seemingly forever linked with a move to Stamford Bridge, has again been talked up as a potential target by Spanish newspaper Sport, with the Blues said to be keeping a close eye on the 23-year-old.
A price is not mentioned but previous reports suggest Koke would not come cheap, with a fee of around £40million likely to be required to tempt Atletico into selling.
Madrid paper Marca also run a report linking the Blues with Isco.
The report states that Mourinho, who was at Spain's European qualifier against Ukraine - possibly to watch Andriy Yarmolenko - was also impressed by Isco, also 23.
Defending Premier League champions Chelsea and Mourinho are struggling this season with just eight points from their eight matches so far.
Roman Abramovich has offered his backing to the Portuguese manager but also insisted that results and performances must improve.
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