Chelsea boss Jose Mourinho was reportedly watching Real Madrid's Isco during Spain's Euro 2016 qualifier away to Ukraine on Monday.
The Portuguese manager was spotted inside the stadium in Kiev and it is widely thought that he was there scouting Dynamo Kiev attacker Andriy Yarmolenko, who has been strongly linked with a move to Stamford Bridge.
While that is believed to be the case, according to AS, Mourinho was also running his eye over Isco as he prepares to make a January move for the midfielder.
Isco joined Real Madrid from Malaga in 2013 and has already made more than 100 first-team appearances for the Spanish giants. It is still unclear whether the 23-year-old is first choice when Los Blancos have a fully-fit squad, however, and his long-term future is believed to be in doubt.