Osasuna fullback Cesar Azpilicueta is being tracked by Manchester City.
City boss Mark Hughes made a personal check on Azpilicueta on Saturday in their 1-1 draw with Barcelona.
Osasuna rate the 20 year-old at £10 million and managed to fight off interest from Liverpool in the summer.
A host of clubs are checking on Azpilicueta with City, Arsenal and Manchester United among the English clubs to be watching him.
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